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Journal articles on the topic 'Imina'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 April 2022

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1

Al Hakimi, Nurush Shofi, Ahmand Hanapi, and Ahmad Ghanaim Fasya. "Green Synthesis Senyawa Imina dari Vanillin and Anilina dengan Katalis Alami Air Jeruk Nipis (Citrus aurantifolia)." ALCHEMY 5, no. 4 (2018): 120. http://dx.doi.org/10.18860/al.v5i4.4706.

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<p class="BodyAbstract">Sintesis imina dari vanilin dan anilina dapat dilakukan tanpa pelarut dengan bantuan katalis asam alami dari jeruk nipis (Citrus aurantifolia). Penelitian ini bertujuan untuk mengkarakterisasi produk imina dengan variasi volume katalis jeruk nipis. Volume katalis jeruk nipis yang digunakan adalah 0,5; 1,0; 1,5; 2,0; dan 2,5 mL. Produk imina dikarakterisasi berdasarkan bentuk, warna, titik lebur dan rendemen. Produk juga identifikasi menggunakan FTIR dan KG-SM. Sintesis imina menghasilkan P1 sebagai produk terbaik dengan rendemen sebesar 64,12% dan tingkat kemurnia

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2

Garcia, Tania, Sylvain Bernés, Guadalupe Hernández, René Gutiérrez, and Jaime Vázquez. "Conformación molecular y estructura cristalina de una diimina quiral: 1,4-BTS[(+)-(1-Feniletilimino)Metil)]Benceno." Quimica Hoy 1, no. 1 (2010): 4. http://dx.doi.org/10.29105/qh1.1-49.

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La síntesis de una nueva bis-imina quiralmente pura, de fórmula C24H24N2, se llevó a cabo por síntesis directa, en ausencia de disolvente, y la caracterización estructural se realizó por difracción de Rayos X en monocristal. Los grupos imino tienen la configuración E, común en aldiminas secundarias con un grupo estorboso sustituyendo el átomo de nitrógeno. Las moléculas se empacan en el estado sólido sin formar contactos intermoleculares significativos, a diferencia de sistemas imínicos y bis-imínicos cercanos, donde grupos aromáticos extendidos generan interacciones estabilizantes en el estad

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3

Solihati, Ditya Putri, Enny Fachriyah, and Ismiyarto Ismiyarto. "Waktu Optimum pada Reaksi Veratraldehid dan Anilin." Jurnal Kimia Sains dan Aplikasi 14, no. 3 (2011): 69–71. http://dx.doi.org/10.14710/jksa.14.3.69-71.

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Imina merupakan senyawa dengan gugus fungsi C=N yang mempunyai potensi sebagai antibakteri, antikanker, antijamur, antitumor dan antimalaria. Sintesis imina dapat dilakukan menggunakan bahan dasar aldehida dan amina primer. Pada penelitian ini, digunakan veratraldehid dan anilin. Tujuan penelitian ini adalah mensintesis 3,4 dimetoksibenzilimina dan menentukan waktu reaksi optimum dari proses sintesis tersebut. Kemurnian produk sintesis berdasarkan pengujian titik leleh. Penentuan hasil sintesis maksimum dilakukan dengan variasi waktu pelarutan. Hasil penelitian menunjukkan bahwa produk sintesi

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4

Syamsudin, Dimas, Ismiyarto Ismiyarto, and Ngadiwiyana Ngadiwiyana. "Synthesis and Antibacterial Testing of Imina Derivative Compounds from Piperonal and Anilin." Jurnal Kimia Sains dan Aplikasi 21, no. 1 (2018): 44–48. http://dx.doi.org/10.14710/jksa.21.1.44-48.

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Synthesis of Imine derivates used as antibacterial activity has been done. Synthesis was conducted by condensation reaction between piperonal and aniline. The product synthesis was characterized by melting point, LC-MS, FTIR and 1H-NMR, then application of the product as antibacterial towards bacteria Staphylococcus aureus and Escherichia coli. The product of synthesis was pale-brown solid, and had melting point at 56-61 0C. Identification by LC-MS showed the compound molecular weight was 225.30 gram/mol, identification by FTIR showed a compound contained imine C=N at 1620.21 cm-1, C-H aromati

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5

Ceballos, Mauricio, Héctor Holguín, César González, and Pedro Amariles. "Interacción warfarina y acetaminofén: Evaluación para establecer su relevancia clínica." Acta Médica Colombiana 38, no. 1 (2013): 22–27. http://dx.doi.org/10.36104/amc.2013.228.

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Objetivo: realizar una revisión estructurada de la interacción warfarina y acetaminofén, buscando establecer su relevancia clínica y profundizar en el mecanismo de dicha interacción.  Método: revisión estructurada en PubMed/Medline, de artículos en inglés y español, buscando los términos warfarin AND (acetaminophen OR paracetamol) en el título o resumen. La búsqueda se complementó con las referencias de artículos valorados como importantes. Los trabajos se agruparon en: relacionados con el aumento de sangrado por la interacción warfarina-acetaminofén, o relacionados con el mecanismo de l

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6

Jiang, Ren-Wang, Shuang-Cheng Ma, Paul P. H. But, and Thomas C. W. Mak. "ChemInform Abstract: Isolation and Characterization of Spirocaesalmin, a Novel Rearranged Vouacapane Diterpenoid from Caesalpinia imina Hance." ChemInform 33, no. 12 (2010): no. http://dx.doi.org/10.1002/chin.200212220.

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7

Su, Biyun, Yaning Li, Dandan Pan, Paison Faida, Tingyu Yan, and Zhan Qu. "Microwave Irradiation Syntheses and Crystal Structures of Two Series of Novel Fivemembered Heterocyclic Mono-Imine Compounds." Current Organic Synthesis 16, no. 3 (2019): 444–48. http://dx.doi.org/10.2174/1570179416666181207125604.

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Aim and Objective: The late transition metal complexes with five-membered heterocyclic mono-imine ligands have attracted much attention because of their potential application in olefin polymerization catalysis. In order to increase the coordination ability of heteroatom N and S to center metals, CH3 group was introduced into the side arm of pyrrole imine and thiophene imine respectively, to get two series of novel five-membered heterocyclic imine compounds, mono(imino)pyrroles and mono(imino)thiophenes Materials and Methods: Two series of novel five-membered heterocyclic compounds with the mon

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8

Lecourt, Constance, Warren Madanamoothoo, Vivian Ferreol, et al. "Mononuclear manganese(iii) complexes with reduced imino nitroxide radicals by single-electron transfer and intermolecular hydrogen bonds as an intramolecular structural driving force." Dalton Transactions 48, no. 35 (2019): 13378–87. http://dx.doi.org/10.1039/c9dt02158b.

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One-electron transfer from Mn(ii) ions to an imino nitroxide radical gives mononuclear Mn(iii) complexes of the reduced amino imine-oxide form for which crystal structures evidence hydrogen bonds networks acting as a stabilizing driving-force.

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9

Fletcher, James T., Matthew D. Hanson, Joseph A. Christensen, and Eric M. Villa. "Revisiting ring-degenerate rearrangements of 1-substituted-4-imino-1,2,3-triazoles." Beilstein Journal of Organic Chemistry 14 (August 10, 2018): 2098–105. http://dx.doi.org/10.3762/bjoc.14.184.

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The 1-substituted-4-imino-1,2,3-triazole motif is an established component of coordination compounds and bioactive molecules, but depending on the substituent identity, it can be inherently unstable due to Dimroth rearrangements. This study examined parameters governing the ring-degenerate rearrangement reactions of 1-substituted-4-imino-1,2,3-triazoles, expanding on trends first observed by L’abbé et al. The efficiency of condensation between 4-formyltriazole and amine reactants as well as the propensity of imine products towards rearrangement was each strongly influenced by the substituent i

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10

Mason, Helen E., Judith A. K. Howard, and Hazel A. Sparkes. "Synthesis and structures of three isoxazole-containing Schiff bases." Acta Crystallographica Section C Structural Chemistry 76, no. 9 (2020): 927–31. http://dx.doi.org/10.1107/s2053229620010530.

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The synthesis and structures of three isoxazole-containing Schiff bases are reported, namely, (E)-2-{[(isoxazol-3-yl)imino]methyl}phenol, C10H8N2O2, (E)-2-{[(5-methylisoxazol-3-yl)imino]methyl}phenol, C11H10N2O2, and (E)-2,4-di-tert-butyl-6-{[(isoxazol-3-yl)imino]methyl}phenol, C18H24N2O2. All three structures contain an intramolecular O—H...N hydrogen bond, alongside weaker intermolecular C—H...N and C—H...O contacts. The C—O(H) and imine C=N bond lengths were consistent with structures existing in the enol rather than the keto form. Despite having dihedral angles <25°, none of the compoun

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11

Kuhn, Norbert, Martin Grathwohl, Christiane Nachtigal, and Manfred Steimann. "2.3-Dihydro-2-Methoxyethylimino-L,3-Dimethylimidazol - Ein Neuer Hemilabil Koordinierender Chelatligand [1]." Zeitschrift für Naturforschung B 56, no. 8 (2001): 704–10. http://dx.doi.org/10.1515/znb-2001-0802.

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The bifunctional 2,3-dihydro-2-methoxyethylimino-l,3-dimethylimidazole (C8H 15N3O , 10) is obtained from the reaction of methoxyethyl tosylate (7) and 2,3-dihydro-2-imino-1,3- dimethylimidazole (8) followed by deprotonation in good yield. 10 reacts with {(COD)RhCl}2 (COD = 1,5-cyclooctadiene) to give the imine complex (C8H 15N3O)Rh(COD)Cl (11), which is converted into the chelate complex [(C8H15N3O)Rh(COD)]BF4 (12) on treatment with AgBF4. The imine complex (C8H15N3O) 2PdCl2 (13) is formed through the reaction of 10 with (PhCN)2PdCl2. The X-ray structures of 11, 13 and 2 C8H15N3O · H2PdCl4 (15

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12

Mayekar, Narayan V., Sandip K. Nayak, and Subrata Chattopadhyay. "TiCl3 as a New Catalyst for the Imino Diels-Alder Reaction." Natural Product Communications 1, no. 9 (2006): 1934578X0600100. http://dx.doi.org/10.1177/1934578x0600100913.

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Titanium(III) chloride was found to be an effective catalyst for the imino Diels-Alder reaction between an imine (generated in situ) and an activated alkene in acetonitrile at ambient temperature. The reaction proceeds smoothly to afford the corresponding adduct as a mixture of chromatographically separable cis- and trans isomers in moderate to good yields.

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13

Mason, Helen E., Judith A. K. Howard, and Hazel A. Sparkes. "Selected solid-state behaviour of three di-tert-butyl-substituted N-salicylideneaniline derivatives: temperature-induced phase transitions and chromic behaviour." Acta Crystallographica Section C Structural Chemistry 77, no. 10 (2021): 659–67. http://dx.doi.org/10.1107/s2053229621008780.

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The synthesis, single-crystal structures and chromic behaviour of three related Schiff bases, namely, (E)-2,4-di-tert-butyl-6-{[(4-fluorophenyl)imino]methyl}phenol, C21H26FNO, 1, (E)-2,4-di-tert-butyl-6-{[(4-chlorophenyl)imino]methyl}phenol, C21H26ClNO, 2, and (E)-6-{[(4-bromophenyl)imino]methyl}-2,4-di-tert-butylphenol, C21H26BrNO, 3, are reported. Two polymorphs of 1 were obtained, which were found to have different photochromic properties. Schiff bases 2 and 3 were found to be isostructural and underwent a phase transition upon cooling which was attributed to the dynamic disorder in one of

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14

Luong Xuan, Dien. "Syntheses and Characterizations of Platinum Complexes with New Pyrene-based Salicylaldiminato-type Ligand Substituted at 7-Position of Pyrene." Vietnam Journal of Catalysis and Adsorption 10, no. 2 (2021): 26–35. http://dx.doi.org/10.51316/jca.2021.024.

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Many experimental data show that bulky substituents on the molecules enhance solubility, catalytic activity, and photophysical properties due to the prevention of π-π stacking in metal salicylaldimines. In order to understand the effect of bulkiness of substituents on the properties of the obtained molecules, the author researched and synthesized two new pyrene-based salicylaldiminato-type ligands that were substituted at 7-position and functionalized on imine group with bulky substituents. After the introduction of the tert-butyl group at 7-position of pyrene by Friedel-Crafts reaction, the s

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15

Eliseev, Ivan I., Nadezhda A. Bokach, Matti Haukka та Irina A. Golenya. "cis-Dichlorido(dimethyl sulfoxide-κS)(N,N,N′,N′-tetramethylguanidine-κN′′)platinum(II)". Acta Crystallographica Section E Structure Reports Online 69, № 2 (2013): m117—m118. http://dx.doi.org/10.1107/s160053681300130x.

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In the title compound,cis-[PtCl2(C5H13N3)(C2H6OS)], the four-coordinate PtIIatom is bonded to one N atom of theN,N,N′,N′-tetramethylguanidine ligand, one dimethyl sulfoxide S atom and two chloride ligands, forming acis-square-planar geometry. The bond lengths and angles of the N—Pt—Cl functionality are typical for imine dichloridoplatinum(II) complexes. The H atom of the imino group is oriented towards the O atom of the sulfoxide group of a neighboring molecule and forms an N—H...O hydrogen bond.

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16

Chu, Wan-Yi, Casseday P. Richers, Elizabeth R. Kahle, Thomas B. Rauchfuss, Federica Arrigoni, and Giuseppe Zampella. "Imine-Centered Reactions in Imino-Phosphine Complexes of Iron Carbonyls." Organometallics 35, no. 17 (2016): 2782–92. http://dx.doi.org/10.1021/acs.organomet.6b00318.

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17

Zhai, Feng, Joseph B. Solomon, Alexander S. Filatov, and Richard F. Jordan. "Crystal structure of 3-[(2-acetamidophenyl)imino]butan-2-one." Acta Crystallographica Section E Crystallographic Communications 74, no. 2 (2018): 193–95. http://dx.doi.org/10.1107/s2056989018000749.

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In the title compound, 3-[(2-acetamidophenyl)imino]butan-2-one, C12H14N2O2, the imine C=N bond is essentially coplanar with the ketone C=O bond in an s-trans conformation. The benzene ring is twisted away from the plane of the C=N bond by 53.03 (14)°. The acetamido unit is essentially coplanar with the benzene ring. In the crystal, molecules are connected into chains along the c axis through C—H...O hydrogen bonds, with two adjacent chains being hinged by C—H...O hydrogen bonds.

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18

Zabierowski, Piotr, Janusz Szklarzewicz та Wojciech Nitek. "Disentangling steric and electronic factors in monomeric bis(2-bromo-4-chloro-6-{[(2-hydroxyethyl)imino]methyl}phenolato-κ2N,O)copper(II)". Acta Crystallographica Section C Structural Chemistry 70, № 7 (2014): 659–61. http://dx.doi.org/10.1107/s2053229614012273.

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The title compound, [Cu(C9H8BrClNO2)2], is a square-planar complex. The potentially tridentate dibasic 2-bromo-4-chloro-6-{[(2-hydroxyethyl)imino]methyl}phenolate ligand coordinates in atrans-bis fashion to the CuIIcentreviathe imine N and phenolate O atoms. The CuIIatom lies on the centre of inversion of the molecule. The potentially coordinating hydroxyethyl group remains protonated and uncoordinated, taking part in intermolecular hydrogen bonds with vicinal groups, leading to the formation of a two-dimensional hydrogen-bond network with sheets parallel to the (10\overline{1}) plane. Substit

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19

Anga, Srinivas, Sayak Das Gupta, Supriya Rej, Bhabani S. Mallik, and Tarun K. Panda. "Modelling of Transition State in Grignard Reaction of Rigid N-(Aryl)imino-Acenapthenone (Ar-BIAO): A Combined Experimental and Computational Study." Australian Journal of Chemistry 68, no. 6 (2015): 931. http://dx.doi.org/10.1071/ch14399.

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We present a combined synthetic and computational study on the addition of Grignard reagents RMgBr/RMgI (R = Me, Et) to various sterically rigid N-(aryl)imino-acenapthenone (Ar-BIAO) (Ar = 2,6-iPr2C6H3 (1), 2,6-Me2C6H3 (2), and 2,4,6-Me3C6H2 (3) ligands). In the experimental method, when compounds 1–3 were treated with RMgBr (R = Me, Et) at room temperature, the corresponding racemic N-(aryl)imino-acenapthylene-1-ol (Ar-BIAOH) compounds (Ar = 2,6- iPr2C6H3, R = Me (1a), Et (1b); Ar = 2,6-Me2C6H3, R = Me (2a), Et (2b); and Ar = 2,4,6-Me3C6H2, R = Me (3a), Et (3b)) were obtained in yields up to

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20

Neue, Benedikt, Roland Fröhlich, and Ernst-Ulrich Würthwein. "A Novel Pathway to Imidazo[1,2-a]pyridines. Access through Imino Pyridinium Salts." Zeitschrift für Naturforschung B 67, no. 4 (2012): 295–304. http://dx.doi.org/10.1515/znb-2012-0403.

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A new synthetic strategy for the preparation of imidazo[1,2-a]pyridines 10 is reported, which is based on the electrocyclization reaction of imino pyridinium salts 7 upon treatment with a strong base. The starting materials are easily prepared from 2-aminopyridine (3) by imine condensation and subsequent alkylation at the pyridine nitrogen atom. The ring closure reaction of the zwitterionic intermediate 8 to give a five-membered ring proceeds in low yield forming first the dihydro compound 9, which under the reaction conditions is transformed into the corresponding aromatic compounds 10 and 11

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21

Sunitha, K., Smitha Nair, and P. Palanisamy. "Synthesis, Characterization and Biological Evaluation of Some Novel Azo-Imine Compounds." Asian Journal of Chemistry 34, no. 3 (2022): 663–67. http://dx.doi.org/10.14233/ajchem.2022.23591.

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The oxidative cyclization of thiosemicarbazone (III) synthesized from reaction between substituted aryl aldehydes (I) with thiosemicarbazide (II) was done using ferric chloride as oxidative agent to get 2-amino-5-phenyl-1,3,4-thiadiazole (IV). 2-Amino-5-phenyl-1,3,4-thiadiazole was introduced in condensation reactions with substituted aldehydes to obtain benzylidene imine derivatives (VI)1-5. Further these were treated with sulphanilic acid to give new 2-{[5-phenyl-1,3,4-thiadiazole-2-imino] substituted benzene}diazenyl benzene sulfonic acid derivatives (VII)1-5. These derivatives were further

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22

Nasution, Pajri Samsi, Muhamad Alif Hamimdal, Gustini Syahbirin, and Budi Arifin. "Optimalisasi Sifat Reologi Hidrogel Kitosan-Hialuronat yang Ditaut-Silang dengan Glutaraldehida." ALCHEMY Jurnal Penelitian Kimia 15, no. 1 (2019): 24. http://dx.doi.org/10.20961/alchemy.15.1.22536.24-43.

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<p>Kitosan membentuk hidrogel polikationik dengan penambahan glutaraldehida sebagai penaut-silang. Penambahan hialuronat yang bersifat polianionik diharapkan akan meningkatkan sifat reologis hidrogel tersebut. Penelitian ini mengevaluasi pengaruh konsentrasi glutaraldehida dan hialuronat pada kekuatan gel, titik pecah, dan ketegaran, serta sifat pembengkakan dan pengerutan hidrogel kitosan, dan menentukan konsentrasi optimum keduanya melalui analisis data dengan perangkat lunak Modde 5<sup>Ò</sup>. Hialuronat meningkatkan kekuatan gel, titik pecah, dan ketegaran hidrogel kito

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23

Machado, Rafael C., Richard M. Grazul, and Renata Diniz. "1-(7-Chloro-1,4-dihydroquinolin-4-ylidene)thiosemicarbazide and its hydrochloride: evidence for the existence of a stable imine tautomer in the solid state of 4-aminoquinoline free bases, an anomalous case in nitrogen heterocycles." Acta Crystallographica Section C Structural Chemistry 71, no. 7 (2015): 564–69. http://dx.doi.org/10.1107/s2053229615010311.

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In the solid state, crystals of both 1-(7-chloro-1,4-dihydroquinolin-4-ylidene)thiosemicarbazide–methanol–water (2/1/1), 2C10H9ClN4S·CH3OH·H2O, (I), and its hydrochloride salt {systematic name: [(7-chloro-1,4-dihydroquinolin-4-ylidene)azaniumyl]thiourea chloride}, C10H10ClN4S+·Cl−, (II), assume the imine tautomeric form, contrary to other 4-amino-7-chloroquinolines. Of particular interest are the N—C bond lengths, which have appreciable double-bond character, and the C—N—C aromatic ring bond angle. Both of these parameters have been studied extensively in 4-amino-substituted quinolines. The cr

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24

Gumus, Mustafa Kemal, Fatih Sen, Sevgi Kansiz, Necmi Dege, and Eiad Saif. "Crystal structure and Hirshfeld surface analysis of 2-{[(E)-(3-cyclobutyl-1H-1,2,4-triazol-5-yl)imino]methyl}phenol." Acta Crystallographica Section E Crystallographic Communications 77, no. 12 (2021): 1267–71. http://dx.doi.org/10.1107/s2056989021011658.

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The title compound, C13H14N4O, was developed using the reaction of salicylaldehyde and 3-amino-5-cyclobutyl-1,2,4-triazole in ethanol under microwave irradiation. This eco-friendly microwave-promoted method proved to be efficient in the synthesis of 2-{[(E)-(3-cyclobutyl-1H-1,2,4-triazol-5-yl)imino]methyl}phenol in good yields and purity. The title compound is a Schiff base that exists in the phenol–imine tautomeric form and adopts an E configuration. The three independent molecules in the asymmetric unit (A, B and C) are not planar, the cyclobutyl and the phenol-imine rings are twisted to eac

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25

Cabeza, Javier A., Ignacio del Río, Fabrizia Grepioni, and Víctor Riera. "Approaches to Triosmium Carbonyl Cluster Compounds Derived from Benzophenone Imine. Characterization of Terminal Imino, Bridging Amido, and Orthometalated Imino Derivatives." Organometallics 19, no. 22 (2000): 4643–46. http://dx.doi.org/10.1021/om0004139.

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26

Rahm, Rainer, Sigrid Espenlaub, Udo R. Werz та Gerhard Maas. "[(α-Imino)enamino]phosphonium salts from propyne iminium salts and a phosphorane imine". Heteroatom Chemistry 16, № 5 (2005): 437–46. http://dx.doi.org/10.1002/hc.20131.

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27

Kotowicz, Sonia, Mateusz Korzec, Katarzyna Malarz, et al. "Luminescence and Electrochemical Activity of New Unsymmetrical 3-Imino-1,8-naphthalimide Derivatives." Materials 14, no. 19 (2021): 5504. http://dx.doi.org/10.3390/ma14195504.

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A new series of 1,8-naphtalimides containing an imine bond at the 3-position of the naphthalene ring was synthesized using 1H, 13C NMR, FTIR, and elementary analysis. The impact of the substituent in the imine linkage on the selected properties and bioimaging of the synthesized compounds was studied. They showed a melting temperature in the range of 120–164 °C and underwent thermal decomposition above 280 °C. Based on cyclic and differential pulse voltammetry, the electrochemical behavior of 1,8-naphtalimide derivatives was evaluated. The electrochemical reduction and oxidation processes were

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28

Salisbury, Brian A., John F. Young, Glenn P. A. Yap, and Klaus H. Theopold. "Synthesis and Reactivity of Pyrrolide-Diimine Complexes of Chromium." Collection of Czechoslovak Chemical Communications 72, no. 5-6 (2007): 637–48. http://dx.doi.org/10.1135/cccc20070637.

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Lithium 2,5-bis{[(2,6-diisopropylphenyl)imino]methyl}pyrrol-1-ide (LiL) reacts with [CrCl3(thf)3] to yield the octahedral complex [(η2-L)CrCl2(thf)2] (1), in which only two of the three potential nitrogen donors are coordinated to chromium. In the presence of various alkyl aluminum cocatalysts, 1 catalyzes the polymerization of ethylene. Attempts to prepare alkyl derivatives of 1 were thwarted by an apparent disproportionation, yielding divalent [(η2-L)(η1-L)Cr(thf)] (2). The molecular structures of 1 and 2 have been determined by X-ray diffraction. The structure of 2 is unusual in that it fea

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29

Su, Bi-Yun, Jia-Xiang Wang, Xiang Liu та Qian-Ding Li. "Bis{2-[(phenylimino)ethyl]-1H-pyrrol-1-ido-κ2N,N′}nickel(II): a supramolecular structure formed by C—H...π hydrogen bonds". Acta Crystallographica Section C Crystal Structure Communications 69, № 8 (2013): 851–54. http://dx.doi.org/10.1107/s0108270113018118.

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In the title compound, [Ni(C12H11N2)2], the NiIIcation lies on an inversion centre and has a square-planar coordination geometry. This transition metal complex is composed of two deprotonatedN,N′-bidentate 2-[(phenylimino)ethyl]-1H-pyrrol-1-ide ligands around a central NiIIcation, with the pyrrolide rings and imine groups lyingtransto each other. The Ni—N bond lengths range from 1.894 (3) to 1.939 (2) Å and the bite angle is 83.13 (11)°. The Ni—N(pyrrolide) bond is substantially shorter than the Ni—N(imino) bond. The planes of the phenyl rings make a dihedral angle of 78.79 (9)° with respect t

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30

Rak, Janusz, Karol Krzyminski, Piotr Skurski, et al. "X-Ray, Quantum Mechanics and Density Functional Methods in the Examination of Structure and Tautomerism of N-Methyl-Substituted Acridin-9-amine Derivatives." Australian Journal of Chemistry 51, no. 8 (1998): 643. http://dx.doi.org/10.1071/c97205.

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X-Ray diffraction has shown that N,N-dimethylacridin-9-amine (4) and N ,10-dimethylacridin-9-imine (5) both crystallize in the monoclinic space group P21/c (No. 14) with four molecules in the unit cell. The dimethylamino group in (4) is twisted through an angle of 58·6° relative to a nearly planar acridine moiety. On the other hand, the central ring in (5) is folded along the C(9) · · · N(10) axis through an angle of 26·3° and the exocyclic nitrogen atom with the methyl group attached to it is directed away from the concave side of the acridine nucleus. Theoretical ab initio Hartree–Fock (HF)

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31

Vieira, Rafael P., John R. Thompson, Heloisa Beraldo, and Tim Storr. "Partial conversion of thioamide into nitrile in a copper(II) complex of 2,6-diacetylpyridine bis(thiosemicarbazone), a drug prototype for Alzheimer's disease." Acta Crystallographica Section C Structural Chemistry 71, no. 6 (2015): 430–34. http://dx.doi.org/10.1107/s205322961500813x.

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This work reports the crystal structure of [(Z)-2-((E)-1-{6-[1-({[amino(sulfanidyl-κS)methylidene]amino}imino-κN)ethyl]pyridin-2-yl-κN}ethylidene)-1-cyanohydrazinido-κN1]copper(II), [Cu(C11H11N7S)], the first description of a copper(II) complex of 2,6-diacetylpyridine bis(thiosemicarbazone) showing partial conversion of a thioamide group to a nitrile group. The asymmetric ligand coordinates to the metal centre in anN,N′,N′′,S-tetradentate mannerviathe pyridine N atom, an imine N atom, the hydrazinide N atom and the sulfanidyl S atom, displaying a square-planar geometry. Ligand coordination res

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32

Evans, Gary B., Richard H. Furneaux, Herwig Hausler, Janus S. Larsen, and Peter C. Tyler. "Imino-C-nucleoside Synthesis: Heteroaryl Lithium Carbanion Additions to a Carbohydrate Cyclic Imine and Nitrone." Journal of Organic Chemistry 69, no. 6 (2004): 2217–20. http://dx.doi.org/10.1021/jo035744k.

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33

Mikami, K., T. Yajima, and M. Kaneko. "Asymmetric imine-ene reactions: Diastereofacial selective reactions with chiral glyoxylate-derived?-imino esters and asymmetric catalysis of enantiofacial selective reactions with prochiral?-imino esters." Amino Acids 14, no. 4 (1998): 311–18. http://dx.doi.org/10.1007/bf01318850.

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Enow, Raphel A. E., Wei-Chih Lee, Travis D. Cournoyer, Travis L. Sunderland, and Brian J. Frost. "Unusual Water-Soluble Imino Phosphine Ligand: Enamine and Imine Derivatives of 1,3,5-Triaza-7-phosphaadamantane (PTA)." Inorganic Chemistry 57, no. 15 (2018): 9142–52. http://dx.doi.org/10.1021/acs.inorgchem.8b01167.

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35

Sıdır, İsa, Yadigar Gülseven Sıdır, Sándor Góbi, Halil Berber, and Rui Fausto. "Structural Relevance of Intramolecular H-Bonding in Ortho-Hydroxyaryl Schiff Bases: The Case of 3-(5-bromo-2-hydroxybenzylideneamino) Phenol." Molecules 26, no. 9 (2021): 2814. http://dx.doi.org/10.3390/molecules26092814.

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A new Schiff base compound, 3-(5-bromo-2-hydroxybenzylideneamino)phenol (abbreviated as BHAP) was synthesized and characterized by 1H- and 13C- nuclear magnetic resonance and infrared spectroscopies. DFT/B3LYP/6-311++G(d,p) calculations were undertaken in order to explore the conformational space of both the E- and Z- geometrical isomers of the enol-imine and keto-amine tautomers of the compound. Optimized geometries and relative energies were obtained, and it was shown that the most stable species is the E-enol-imine form, which may exist in four low-energy intramolecularly hydrogen-bonded fo

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36

Zaccheria, Federica, Federica Santoro, Elvina Iftitah, and Nicoletta Ravasio. "Brønsted and Lewis Solid Acid Catalysts in the Valorization of Citronellal." Catalysts 8, no. 10 (2018): 410. http://dx.doi.org/10.3390/catal8100410.

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Terpenes are valuable starting materials for the synthesis of molecules that are of interest to the flavor, fragrance, and pharmaceutical industries. However, most processes involve the use of mineral acids or homogeneous Lewis acid catalysts. Here, we report results obtained in the liquid-phase reaction of citronellal with anilines under heterogeneous catalysis conditions to give tricyclic compounds with interesting pharmacological activity. The terpenic aldehyde could be converted into octahydroacridines with a 92% yield through an intramolecular imino Diels–Alder reaction of the imine initi

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Hernández-Téllez, Guadalupe, Sylvain Bernès, Angel Mendoza, et al. "Crystal structures of four chiral imine-substituted thiophene derivatives." Acta Crystallographica Section E Crystallographic Communications 72, no. 3 (2016): 350–54. http://dx.doi.org/10.1107/s2056989016002516.

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A series of thiophenes substituted in positions 2 and 5 by imine groups have been synthesized using a solvent-free approach, and their crystal structures determined. The substituents are chiral groups, and the expected absolute configuration for each molecule was confirmed by refinement of the Flack parameter. The compounds are 2,5-bis[(S)-(+)-(1,2,3,4-tetrahydronaphthalen-1-yl)imino]thiophene, C26H26N2S, (I), 2,5-bis{[(R)-(−)-1-(4-methoxyphenyl)ethyl]iminomethyl}thiophene, C24H26N2O2S, (II), 2,5-bis{[(R)-(−)-1-(4-fluorophenyl)ethyl]iminomethyl}thiophene, C22H20F2N2S, (III), and 2,5-bis{[(S)-(

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38

Su, Bi-Yun, Xiao-Teng Li, Jia-Xiang Wang та Xu-Dong Wang. "Bis(2-{1-[(2,4,6-trimethylphenyl)imino]ethyl}pyrrol-1-ido-κ2N,N′)nickel(II): a supramolecular structure formed by C—H...π(arene) hydrogen bonds". Acta Crystallographica Section C Structural Chemistry 71, № 12 (2015): 1053–56. http://dx.doi.org/10.1107/s2053229615020781.

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<!?tlsb=-0.2pt>Nitrogen-based polydentate ligands are of interest owing to their flexible complexation to transition metal atoms. For the title compound, [Ni(C15H17N2)2], a transition metal complex formed by the coordination of two identicalN,N′-bidentate mono(imino)pyrrolyl ligands to an NiIIcentre, an X-ray crystal diffraction study indicates that the two ligands show an inverted arrangement with respect to one another around the NiIIcentre, which is located on a crystallographic inversion centre. The planes of the aromatic substituents at the imine N atoms of the ligands show dihedral

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Roche, Stéphane P. "In the Pursuit of (Ald)Imine Surrogates for the Direct Asymmetric Synthesis of Non-Proteinogenic α-Amino Acids". Synthesis 53, № 16 (2021): 2767–76. http://dx.doi.org/10.1055/a-1463-4266.

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AbstractNature remarkably employs posttranslational modifications of the 20 canonical α-amino acids to devise a far larger structural, conformational, and functional diversity found in non-proteinogenic amino acids (NPAAs), which ultimately translates into a plethora of complex biological functions. Synthetic chemists are continuously trying to reproduce and even extrapolate the repertoire of NPAA building blocks to build structural diversity into bioactive molecules and materials. The direct asymmetric functionalization of α-imino esters represents one of the most robust and attractive routes

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Majed Jari Mohammed, Majed Jari Mohammed, Abdul Amir H. Kadhum Abdul Amir H Kadhum, and Adnan Ibrahim Mohammed and Sameer H. Abbood Al Rekabi Adnan Ibrahim Mohammed and Sameer H Abbood Al Rekabi. "Synthesis of One New Sugar Imine Molecule." Journal of the chemical society of pakistan 42, no. 1 (2020): 103. http://dx.doi.org/10.52568/000622.

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In this research, the molecule Nand#39;-((E)-5-methoxy-2-((1-((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)-4,5-dihydro-1H-1,2,3-triazol-4-yl)methoxy) benzylidene)-4-methyl-1,2,3-thiadiazole-5-carbohydrazide were synthesized and characterized by several conventional analysis methods. Its physical properties and thermal stability was studied. The synthesis was conducted based on D-glucose using concept of click chemistry reaction mechanism. Some of the reaction was conducted using microwave irradiation. The synthesis steps initiated by adding propargyl bromide to

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41

Majed Jari Mohammed, Majed Jari Mohammed, Abdul Amir H. Kadhum Abdul Amir H Kadhum, and Adnan Ibrahim Mohammed and Sameer H. Abbood Al Rekabi Adnan Ibrahim Mohammed and Sameer H Abbood Al Rekabi. "Synthesis of One New Sugar Imine Molecule." Journal of the chemical society of pakistan 42, no. 1 (2020): 103. http://dx.doi.org/10.52568/000622/jcsp/42.01.2020.

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In this research, the molecule Nand#39;-((E)-5-methoxy-2-((1-((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)-4,5-dihydro-1H-1,2,3-triazol-4-yl)methoxy) benzylidene)-4-methyl-1,2,3-thiadiazole-5-carbohydrazide were synthesized and characterized by several conventional analysis methods. Its physical properties and thermal stability was studied. The synthesis was conducted based on D-glucose using concept of click chemistry reaction mechanism. Some of the reaction was conducted using microwave irradiation. The synthesis steps initiated by adding propargyl bromide to

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42

Kocak, Cagdas, Gorkem Oylumluoglu, Adem Donmez та ін. "Crystal structure and photoluminescence properties of a new monomeric copper(II) complex: bis(3-{[(3-hydroxypropyl)imino]methyl}-4-nitrophenolato-κ3 O,N,O′)copper(II)". Acta Crystallographica Section C Structural Chemistry 73, № 5 (2017): 414–19. http://dx.doi.org/10.1107/s2053229617005976.

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Copper(II)–Schiff base complexes have attracted extensive interest due to their structural, electronic, magnetic and luminescence properties. The title novel monomeric CuII complex, [Cu(C10H11N2O4)2], has been synthesized by the reaction of 3-{[(3-hydroxypropyl)imino]methyl}-4-nitrophenol (H2 L) and copper(II) acetate monohydrate in methanol, and was characterized by elemental analysis, UV and IR spectroscopies, single-crystal X-ray diffraction analysis and a photoluminescence study. The CuII atom is located on a centre of inversion and is coordinated by two imine N atoms, two phenoxy O atoms

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43

Hernández-Téllez, Guadalupe, Gloria E. Moreno, Sylvain Bernès, et al. "Crystal structures of ten enantiopure Schiff bases bearing a naphthyl group." Acta Crystallographica Section E Crystallographic Communications 72, no. 4 (2016): 583–89. http://dx.doi.org/10.1107/s2056989016004692.

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Using a general solvent-free procedure for the synthesis of chiral Schiff bases, the following compounds were synthesized and their crystal structures determined: (S)-(+)-2-{[(1-phenylethyl)imino]methyl}naphthalene, C19H17N, (1), (S)-(+)-2-({[(4-methylphenyl)ethyl]imino}methyl)naphthalene, C20H19N, (2), (R)-(−)-2-({[(4-methoxylphenyl)ethyl]imino}methyl)naphthalene, C20H19NO, (3), (R)-(−)-2-({[(4-fluorophenyl)ethyl]imino}methyl)naphthalene, C19H16FN, (4), (S)-(+)-2-({[(4-chlorophenyl)ethyl]imino}methyl)naphthalene, C19H16ClN, (5), (S)-(+)-2-({[(4-bromophenyl)ethyl]imino}methyl)naphthalene, C19H

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44

Grøndahl, Lisbeth, Jens Josephsen, Rikke Mattsson Bruun, et al. "Platinum(II) Benzophenone Imine Complexes and the Crystal Structure of trans-(N,N)-(Benzophenone imine)chloro-[2-(1-imino-1-phenylmethyl)phenylido]platinum(II)--Acetone (2/1)." Acta Chemica Scandinavica 53 (1999): 1069–77. http://dx.doi.org/10.3891/acta.chem.scand.53-1069.

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45

Heilemann, Werner, and Rudiger Mews. "Imino- und bis(imino) fluorsulfinate." Journal of Fluorine Chemistry 52, no. 3 (1991): 377–88. http://dx.doi.org/10.1016/s0022-1139(00)80352-8.

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46

Jarm, Vida. "Preferentna imena konstitucijskih jedinica koja se upotrebljavaju u imenima polimera na osnovi strukture (II. dio)." Kemija u industriji 68, no. 1-2 (2019): 31–39. http://dx.doi.org/10.15255/kui.2017.047b.

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Načinjen je popis konstitucijskih jedinica, KJ, tablica 1, koje se u skladu s pravilima IUPAC-ovog imenovanja upotrebljavaju za tvorbu imena polimera. Popis sadržava KJ-e komercijalnih i dobro poznatih polimera kao i KJ-e pomoću kojih su imenovani polimeri u IUPAC-ovim dokumentima. Za svaku je konstitucijsku jedinicu dano preferentno ime. Popis sadržava i druga prihvatljiva imena te imena koja se zbog zastarjelosti ili netočnosti ne bi trebala upotrebljavati iako su u prošlosti ili u drugim okolnostima upotrebljavana kao točna. U tablici 2 navedena su imena najčešćih polimera i to na osnovi st

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Jin, Guifang, Jingwei Zhao, Jianwei Han, Shizheng Zhu, and Jianmin Zhang. "Iodine-promoted imino-Diels–Alder reaction of fluorinated imine with enol ether: synthesis of 2-perfluorophenyl tetrahydroquinoline derivatives." Tetrahedron 66, no. 4 (2010): 913–17. http://dx.doi.org/10.1016/j.tet.2009.11.092.

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48

Smit, Theo M., Atanas K. Tomov, George J. P. Britovsek, Vernon C. Gibson, Andrew J. P. White, and David J. Williams. "The effect of imine-carbon substituents in bis(imino)pyridine-based ethylene polymerisation catalysts across the transition series." Catalysis Science & Technology 2, no. 3 (2012): 643. http://dx.doi.org/10.1039/c2cy00448h.

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49

Ivanchev, S. S., N. I. Ivancheva, S. Ya Khaikin, E. V. Sviridova, and D. G. Rogozin. "Polymerization of ethylene by SiO2-supported two-component catalytic systems containing bis(imino)pyridine and bis(imine) ligands." Polymer Science Series A 48, no. 3 (2006): 251–56. http://dx.doi.org/10.1134/s0965545x06030059.

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50

Ivanchev, S. S., A. V. Yakimanskii, and D. G. Rogozin. "Quantum-Chemical Calculation of the Thermal Stability of Bis(imine) and Bis(imino)pyridine Catalysts of Ethylene Polymerization." Doklady Physical Chemistry 393, no. 4-6 (2003): 334–36. http://dx.doi.org/10.1023/b:dopc.0000010336.71618.2a.

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