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Journal articles on the topic 'Organic compounds Cyclopropane'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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1

Fadeev, Alexander A., Alexey O. Chagarovskiy, Anton S. Makarov, et al. "Synthesis of (Het)aryl 2-(2-hydroxyaryl)cyclopropyl Ketones." Molecules 25, no. 23 (2020): 5748. http://dx.doi.org/10.3390/molecules25235748.

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A simple general method for the synthesis of 1-acyl-2-(ortho-hydroxyaryl)cyclopropanes, which belong to the donor–acceptor cyclopropane family, has been developed. This method, based on the Corey–Chaykovsky cyclopropanation of 2-hydroxychalcones, allows for the preparation of a large diversity of hydroxy-substituted cyclopropanes, which can serve as promising building blocks for the synthesis of various bioactive compounds.

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2

Hassenrück, Jessica, and Valentin Wittmann. "Cyclopropene derivatives of aminosugars for metabolic glycoengineering." Beilstein Journal of Organic Chemistry 15 (March 4, 2019): 584–601. http://dx.doi.org/10.3762/bjoc.15.54.

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Cyclopropenes have been proven valuable chemical reporter groups for metabolic glycoengineering (MGE). They readily react with tetrazines in an inverse electron-demand Diels–Alder (DAinv) reaction, a prime example of a bioorthogonal ligation reaction, allowing their visualization in biological systems. Here, we present a comparative study of six cyclopropene-modified hexosamine derivatives and their suitability for MGE. Three mannosamine derivatives in which the cyclopropene moiety is attached to the sugar by either an amide or a carbamate linkage and that differ by the presence or absence of

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3

Sedenkova, Kseniya N., Kristian S. Andriasov, Tamara S. Kuznetsova, and Elena B. Averina. "Oxyfunctionalization of CH2-Group Activated by Adjacent Three-Membered Ring." Current Organic Synthesis 15, no. 4 (2018): 515–32. http://dx.doi.org/10.2174/1570179415666180405113158.

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Background: Increasing use of the three-membered ring in drug development initiates the search for efficient methods of transformations of cyclopropane derivatives. Oxidation of methylene group activated by an adjacent cyclopropane represents a direct approach towards carbonylcyclopropanes, allows avoiding unnecessary synthetic stages and meets the requirements of atom economy. Objective: In this review all available data concerning the oxidation of cyclopropane-containing hydrocarbons and their functionally substituted derivatives are systematized, and the general regularities between the str

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4

Strelow, Thomas, Jürgen Voss, and Werner Baum. "Electroreduction of Organic Compounds, 23 [1].Preparation of the Highly Strained 1′,3′-Dichlorodispiro[cyclopropane-1,2′-bicyclo[ 1.1.0lbutane-4′,1″-cyclopropane][2]." Zeitschrift für Naturforschung B 48, no. 9 (1993): 1288–90. http://dx.doi.org/10.1515/znb-1993-0919.

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The preparation of the title compound 4 by electrochemical reduction of 4,4,8,8-tetrachloro-dispiro[2.1.2.1]octane 3 is described. The geometry of the compounds is discussed in terms of quantum chemical calculations and spectroscopic results.

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5

Nünnecke, Dirk, Jürgen Voss, and Gunadi Adiwidjaja. "Electroreduction of Organic Compounds, 30. Cathodic Formation of 4,4,8-Trichlorodispiro[2.1.2.1] octane from 4,4,8,8-Tetrachlorodispiro[2.1.2.1] octane." Zeitschrift für Naturforschung B 52, no. 2 (1997): 259–62. http://dx.doi.org/10.1515/znb-1997-0221.

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Abstract The formation of the highly strained 1′ ,3′’-Dichlorodispiro[cyclopropane-1,2′-bicyclo[1.1.0]- butane-4′, 1″-cyclopropane] (2) by electrochemical reduction of the title compound 1, published by Strelow, Voss and Baum [2], turned out to be erroneous and has to be corrected. Instead of the formation of 2 a substitution of one chloro substituent by hydrogen takes place and the trichlorodispiro[2.1.2.1]octane 3 results. The structure of 3 is confirmed by an X-ray structural analysis.

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6

Taş, Akgül, Selma Kuru Berk, Erdal Orman, et al. "Influence of Pre-Harvest Gibberellic Acid and Post-Harvest 1-methyl Cyclopropane Treatments on Phenolic Compounds, Vitamin C and Organic Acid Contents during the Shelf Life of Strawberry Fruits." Plants 10, no. 1 (2021): 121. http://dx.doi.org/10.3390/plants10010121.

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In recent years, significant portions of the fresh fruits and vegetables produced worldwide have been decaying before reaching the consumer because of insufficient preservation after harvest. In this direction, we carried the study out to investigate the effect of gibberellic acid (GA3) and 1-methyl cyclopropane (1-MCP) applications on phenolic compounds and organic acid contents of the strawberry fruits (cv. Albion) during shelf-life. Gibberellic acid treatments, which prepared in two different concentrations (50 and 100 ppm), were performed by spraying the leaves before harvest. 1-methyl cyc

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7

Taş, Akgül, Selma Kuru Berk, Erdal Orman, et al. "Influence of Pre-Harvest Gibberellic Acid and Post-Harvest 1-methyl Cyclopropane Treatments on Phenolic Compounds, Vitamin C and Organic Acid Contents during the Shelf Life of Strawberry Fruits." Plants 10, no. 1 (2021): 121. http://dx.doi.org/10.3390/plants10010121.

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In recent years, significant portions of the fresh fruits and vegetables produced worldwide have been decaying before reaching the consumer because of insufficient preservation after harvest. In this direction, we carried the study out to investigate the effect of gibberellic acid (GA3) and 1-methyl cyclopropane (1-MCP) applications on phenolic compounds and organic acid contents of the strawberry fruits (cv. Albion) during shelf-life. Gibberellic acid treatments, which prepared in two different concentrations (50 and 100 ppm), were performed by spraying the leaves before harvest. 1-methyl cyc

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8

Edwards, Oliver E., Dusan Dvornik, Ralph J. Kolt, and Barbara A. Blackwell. "Formation, reactions, and NMR spectra of 1,20-cycloatidanes." Canadian Journal of Chemistry 70, no. 5 (1992): 1397–405. http://dx.doi.org/10.1139/v92-178.

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Imines derived from the alkaloid atisine gave N-acetyl 1,20-cycloatidane derivatives when heated with acetic anhydride. Vigorous alkaline hydrolysis cleaved the cyclopropane ring, regenerating the parent imine. The 1H and 13C NMR spectra of several 1,20-cyclo derivatives have been assigned and compared to those of the parent imines 2. All of the N-acetyl compounds showed doubling of the majority of the NMR resonances, due to amide rotamers. The effects of the cyclopropane ring current are noted.

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9

Medishetti, Nagaraju, Ashok Kale, Jagadeesh Nanubolu, and Krishnaiah Atmakur. "Molecular-Iodine-Promoted Synthesis of Dihydrobenzofuran-3,3-dicarbonitriles through a Novel Rearrangement." Synlett 30, no. 03 (2019): 293–98. http://dx.doi.org/10.1055/s-0037-1611706.

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The title compounds were synthesized from 5,5-dimethylcyclohexane-1,3-dione, benzaldehyde, and malononitrile promoted by molecular iodine in basic medium via 2-amino-7,7-dimethyl-5-oxo-4-phenyl-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, by a novel protocol. The protocol involves a novel rearrangement in which the 4H-chromene fragment dissociates to a cyclopropane moiety and rearranges to the five-membered compound 6,6-dimethyl-4-oxo-2-phenyl-4,5,6,7-tetrahydrobenzofuran-3,3(2H)-dicarbonitrile. Simple reaction conditions, excellent yields, and high compatibility are the advantages of this

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10

Liu, Yingchun, Ted S. Sorensen, and Fang Sun. "Stereoselective 1,3-debromination reactions." Canadian Journal of Chemistry 71, no. 2 (1993): 258–62. http://dx.doi.org/10.1139/v93-037.

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The metallate, PPN+Cr(CO)4NO−, was used for the 1,3-debrominative reductive cyclization of the (±) and meso isomers of dimethyl 2,4-dibromoglutarate and dimethyl 2,4-dibromo-2,4-dimethylglutarate. In both (±) isomers, the reaction is stereospecific in giving the trans cyclopropane product. In the meso case, the reaction is unselective in the first case, but distinctly favors the cis cyclopropane isomer in the second set of compounds. This (±) and meso pair thus represent the first example of near stereospecificity in the debrominations of both 1,3-dibromo diastereomers. Using an enantiomerical

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11

Budynina, Ekaterina, Konstantin Ivanov, Ivan Sorokin, and Mikhail Melnikov. "Ring Opening of Donor–Acceptor Cyclopropanes with N-Nucleophiles." Synthesis 49, no. 14 (2017): 3035–68. http://dx.doi.org/10.1055/s-0036-1589021.

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Ring opening of donor–acceptor cyclopropanes with various N-nucleophiles provides a simple approach to 1,3-functionalized compounds that are useful building blocks in organic synthesis, especially in assembling various N-heterocycles, including natural products. In this review, ring-opening reactions of donor–acceptor cyclopropanes with amines, amides, hydrazines, N-heterocycles, nitriles, and the azide ion are summarized.1 Introduction2 Ring Opening with Amines3 Ring Opening with Amines Accompanied by Secondary Processes Involving the N-Center3.1 Reactions of Cyclopropane-1,1-diesters with Pr

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12

Pohmakotr, Manat, and Srisamorn Sithikanchanakul. "Fluoride-Catalyzed Condensation of 1-Phenylsulfinyl-1-(trimethylsilyl)cyclopropane with Carbonyl Compounds." Synthetic Communications 19, no. 3-4 (1989): 477–84. http://dx.doi.org/10.1080/00397918908050689.

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13

Adams, Luke A., Varinder K. Aggarwal, Roger V. Bonnert, et al. "Diastereoselective Synthesis of Cyclopropane Amino Acids Using Diazo Compounds Generated in Situ." Journal of Organic Chemistry 68, no. 24 (2003): 9433–40. http://dx.doi.org/10.1021/jo035060c.

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14

Mayer, Szabolcs, András Keglevich, Csilla Sepsey Für, et al. "Results in Chemistry of Natural Organic Compounds. Synthesis of New Anticancer Vinca Alkaloids and Flavone Alkaloids." Chemistry 2, no. 3 (2020): 714–26. http://dx.doi.org/10.3390/chemistry2030046.

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The antitumor indole–indoline alkaloids of the evergreen Catharanthus roseus—namely vinblastine and vincristine—are widely used in chemotherapy of cancer. Many efforts were made to synthesize more efficient derivatives with less side-effect. The 14,15-cyclopropane derivative of vinblastine was synthesized successfully by a five-step procedure starting from vindoline. Vincristine, vinorelbine and several derivatives condensed with a cyclopropane ring were synthesized. Various hybrid molecules were prepared by the coupling reaction of vindoline and methyl ester of tryptophan, which were conjugat

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15

Ha, Hyun-Joon. "Preface to “Aziridine Chemistry”." Molecules 26, no. 6 (2021): 1525. http://dx.doi.org/10.3390/molecules26061525.

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16

Allouche, Emmanuelle M. D., and André B. Charette. "Cyclopropanation Reactions of Semi-stabilized and Non-stabilized Diazo Compounds." Synthesis 51, no. 21 (2019): 3947–63. http://dx.doi.org/10.1055/s-0037-1611915.

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The cyclopropane ring is present in a large number of bioactive molecules as its incorporation often greatly alters their physiochemical properties. The synthesis of such motif is therefore of interest. Diazo compounds are versatile and powerful reagents that can be used in a broad range of reactions, including cyclopropanation processes. However, in case of unstable diazo reagents such as the donor-substituted variants, their inherent toxicity and instability have hampered their effective synthesis and utilization. Herein, we report the recent advances devoted to the safe and facile produc

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17

Kiyokawa, Kensuke, Itaru Suzuki, Makoto Yasuda, and Akio Baba. "Synthesis of Cyclopropane-Containing Phosphorus Compounds by Radical Coupling of Butenylindium with Iodo Phosphorus Compounds." European Journal of Organic Chemistry 2011, no. 11 (2011): 2163–71. http://dx.doi.org/10.1002/ejoc.201001471.

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18

Liu, Wenzhu, Lijuan Dou, and Weihua Mu. "Recent Progress on[3+2] Ring-Expansion Reaction of Cyclopropane with Unsaturated Compounds." Chinese Journal of Organic Chemistry 40, no. 5 (2020): 1150. http://dx.doi.org/10.6023/cjoc201910019.

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19

Elinson, Michail N., Anatoly N. Vereshchagin, Alexander D. Korshunov, Fedor V. Ryzhkov, and Mikhail P. Egorov. "Stereoselective cascade assembling of benzylidenecyanoacetates and 1,3-dimethylbarbituric acid into (1R*,2S*)-1-cyano-5,7-dialkyl-4,6,8-trioxo-2-aryl-5,7-diazaspiro[2.5]octane-1-carboxylates." Heterocyclic Communications 23, no. 2 (2017): 85–90. http://dx.doi.org/10.1515/hc-2016-0190.

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AbstractA new stereoselective cascade reaction of benzylidenecyanoacetates and 1,3-dimethylbarbituric acid by the action of bromine in the presence of a base into substituted (barbituric acid)-5-spirocyclopropanes is described. The yields are in the range of 60%–75%. Nuclear magnetic resonance (NMR) studies indicate that this cascade transformation results in the stereoselective formation of spiro products with trans-configuration of aryl and alkoxycarbonyl substituents in the cyclopropane ring. The products are a perspective class of compounds with prominent pharmacological and physiological

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20

Niu, Jun-Long, Mao-Ping Song, Xing Zhang, et al. "Metal-Free Blue-Light-Mediated Cyclopropanation of Indoles by Aryl(diazo)acetates." Synthesis 51, no. 04 (2018): 889–98. http://dx.doi.org/10.1055/s-0037-1610668.

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Blue-light-mediated cyclopropanation of indoles with aryl(diazo)acetates has been developed. The salient features of this strategy are that it is metal-free, operationally simple and atom-efficient, and that it uses an environmentally friendly energy source. In this protocol, blue light was employed as the sole energy source for the transformation. A variety of cyclopropane-fused indoline compounds was obtained in moderate to excellent yields and high diastereoselectivities under mild conditions.

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21

Inuki, Shinsuke, and Yukari Fujimoto. "Total synthesis of naturally occurring chiral cyclopropane fatty acids and related compounds." Tetrahedron Letters 60, no. 16 (2019): 1083–90. http://dx.doi.org/10.1016/j.tetlet.2019.03.043.

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22

Mandour, Hamada S. A., Yoko Nakagawa, Masaya Tone, et al. "Reusable and highly enantioselective water-soluble Ru(II)-Amm-Pheox catalyst for intramolecular cyclopropanation of diazo compounds." Beilstein Journal of Organic Chemistry 15 (February 6, 2019): 357–63. http://dx.doi.org/10.3762/bjoc.15.31.

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A reusable and highly enantioselective catalyst for the intramolecular cyclopropanation of various diazo ester and Weinreb amide derivatives was developed. The reactions catalyzed by a water-soluble Ru(II)-Amm-Pheox catalyst proceeded smoothly at room temperature, affording the corresponding bicyclic cyclopropane ring-fused lactones and lactams in high yields (up to 99%) with excellent enantioselectivities (up to 99% ee). After screening of various catalysts, the Ru(II)-Amm-Pheox complex having an ammonium group proved to be crucial for the intramolecular cyclopropanation reaction in a water/e

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23

Carson, Philip A., and Paul de Mayo. "Surface photochemistry: Semiconductor mediated reactions of some 1,2-diarylcyclopropanes." Canadian Journal of Chemistry 65, no. 5 (1987): 976–79. http://dx.doi.org/10.1139/v87-166.

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1,2-Diphenylcyclopropane (1) was found to be oxidized on illuminated ZnO in the presence of air while 1-(p-methoxyphenyl)-2-phenylcyclopropane (2) and 1,2-bis(p-methoxyphenyl)cyclopropane (3) were found to be similarly oxidized on illuminated CdS. Compounds 2 and 3 were found, also, to undergo a rapid photochemical cis-trans isomerization on CdS whereas 1 did not undergo such isomerization. An electron transfer mechanism involving formation of the radical cations of the substrates is proposed.

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24

Fesenko, A. A., and A. D. Shutalev. "Synthesis of Nitrogen-containing Heterocyclic Compounds by Ring Enlargement Reactions through Bicyclic Cyclopropane Intermediates (Review)." Chemistry of Heterocyclic Compounds 49, no. 6 (2013): 827–48. http://dx.doi.org/10.1007/s10593-013-1318-x.

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25

Limachi, Ivan, Mariela Gonzalez-Ramirez, Sophie Manner, et al. "Trichilianones A-D, Novel Cyclopropane-Type Limonoids from Trichilia adolfi." Molecules 26, no. 4 (2021): 1019. http://dx.doi.org/10.3390/molecules26041019.

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The fractionation of an ethanol extract of the bark of Trichilia adolfi yielded four novel limonoids (trichilinones A-D, 1–4), with five fused rings and related to the hortiolide-type limonoids. Starting with an ε-lactone, which is α,β-unsaturated in trichilinones A and D (1 and 4), attached to a tetrahydrofuran ring that is connected to an unusual bicyclo [5.1.0] hexane system, joined with a cyclopentanone with a 3-furanyl substituent [(2-oxo)-furan-(5H)-3-yl in trichilinone D (4)], the four compounds isolated display a new 7/5/3/5/5 limonoid ring system. Their structures were established bas

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26

Puet, Alejandro, Gema Domínguez, Francisco Javier Cañada, and Javier Pérez-Castells. "Synthesis and Evaluation of Novel Iminosugars Prepared from Natural Amino Acids." Molecules 26, no. 2 (2021): 394. http://dx.doi.org/10.3390/molecules26020394.

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Cyclopropanated iminosugars have a locked conformation that may enhance the inhibitory activity and selectivity against different glycosidases. We show the synthesis of new cyclopropane-containing piperidines bearing five stereogenic centers from natural amino acids l-serine and l-alanine. Those prepared from the latter amino acid may mimic l-fucose, a natural-occurring monosaccharide involved in many molecular recognition events. Final compounds prepared from l-serine bear S configurations on the C5 position. The synthesis involved a stereoselective cyclopropanation reaction of an α,β-unsatur

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27

STRELOW, T., J. VOSS, and W. BAUM. "ChemInform Abstract: Electroreduction of Organic Compounds. Part 23. Preparation of the Highly Strained 1′,3′-Dichlorodispiro(cyclopropane-1,2′-bicyclo(1.1.0) butane-4′,1′′-cyclopropane)." ChemInform 25, no. 1 (2010): no. http://dx.doi.org/10.1002/chin.199401151.

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28

Casey, Charles P., and Laura J. Smith. "Cyclopropane formation from the reaction of (.gamma.-haloalkyl)iron compounds with silver(1+)." Organometallics 7, no. 11 (1988): 2419–21. http://dx.doi.org/10.1021/om00101a027.

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29

GOMES, ANDRÉ A. M., DANILO B. PINHO, ZENILDA DE L. CARDEAL, HELVÉCIO C. MENEZES, MARISA V. DE QUEIROZ, and OLINTO L. PEREIRA. "Simplicillium coffeanum, a new endophytic species from Brazilian coffee plants, emitting antimicrobial volatiles." Phytotaxa 333, no. 2 (2018): 188. http://dx.doi.org/10.11646/phytotaxa.333.2.2.

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During a bioprospecting of fungi producing antimicrobial volatile organic compounds, two Verticillium-like isolates from coffee branches were obtained by a parallel growth technique using Muscodor albus CZ 620. Micro-morphological characteristics and phylogenetic analyses showed that both isolates belonged to Simplicillium and represented a new species, namely S. coffeanum. In the test for antimicrobial activity, the mixture of volatiles emitted by S. coffeanum COAD 2057 inhibited the growth of Aspergillus ochraceus, A. tubingensis, A. sydowii and A. niger on PDA. Among the compounds of volati

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30

Sengmany, Stéphane, Eric Léonel, Jean Paul Paugam, and Jean-Yves Nédélec. "Cyclopropane formation by nickel-catalysed electroreductive coupling of activated olefins and unactivated gem-dibromo compounds." Tetrahedron 58, no. 2 (2002): 271–77. http://dx.doi.org/10.1016/s0040-4020(01)01133-4.

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31

Rahman, Noorsaadah Abd, and Ian Fleming. "Compatibility Studies of Dimethyl(phenyl)silyl Group as a Masked Hydroxyl Group in Compounds Containing Cyclopropane Rings and in Compounds Containing the Enone Functionality." Synthetic Communications 23, no. 11 (1993): 1583–94. http://dx.doi.org/10.1080/00397919308011254.

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32

Imamoto, Tsuneo, Toshihiko Hatajima, and Takeshi Yoshizawa. "Samarium(II) iodide promoted reductive ring opening reaction of cyclopropane-1,1-dicarboxylic esters. Synthesis of substituted 5-Pentanolides from carbonyl compounds and dimethyl cyclopropane-1,1-dicarboxylate." Tetrahedron Letters 35, no. 42 (1994): 7805–8. http://dx.doi.org/10.1016/0040-4039(94)80123-1.

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33

Carlson, Rolf, and Alemayehu Mekonnen. "An Efficient and User-Friendly Strategy for the Synthesis of Cyclopropane and Dihydrofuran Rings from Difunctional Compounds." Synthesis 2006, no. 10 (2006): 1657–63. http://dx.doi.org/10.1055/s-2006-926459.

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34

Draux, Madelein, Ivan Bernal, and Richard Fuchs. "Conglomerate crystallization in organic compounds II. The conformation, configuration, and spontaneous resolution of 1-phenyl-2-cyano-cyclopropane." Structural Chemistry 2, no. 2 (1991): 127–31. http://dx.doi.org/10.1007/bf00676623.

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35

Levina, Eleonora V., Anatoly I. Kalinovsky, Polina V. Andriyashenko, Pavel S. Dmitrenok, Dmitry L. Aminin, and Valentin A. Stonik. "Phrygiasterol, a Cytotoxic Cyclopropane-Containing Polyhydroxysteroid, and Related Compounds from the Pacific StarfishHippasteriaphrygiana." Journal of Natural Products 68, no. 10 (2005): 1541–44. http://dx.doi.org/10.1021/np049610t.

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36

Taniguchi, Takashi, Yasuaki Taketomo, Mizuki Moriyama, Noritada Matsuo, and Yoo Tanabe. "Synthesis and Stereostructure-Activity Relationship of Novel Pyrethroids Possessing two Asymmetric Centers on a Cyclopropane Ring." Molecules 24, no. 6 (2019): 1023. http://dx.doi.org/10.3390/molecules24061023.

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2-Methylcyclopropane pyrethroid insecticides bearing chiral cyanohydrin esters or chiral ethers and two asymmetric centers on the cyclopropane ring, were synthesized. These compounds were designed using a “reverse connection approach” between the isopropyl group in Fenvalerate, and between two dimethyl groups in an Etofenprox analogue (the methyl, ethyl form), respectively. These syntheses were achieved by accessible ring opening reactions of commercially available (±)-, (R)-, and (S)-propylene oxides using 4-chlorobenzyl cyanide anion as the crucial step, giving good overall yield of the prod

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37

Boitsov, Vitali, Alexander Stepakov, Alexander Filatov та ін. "Concise Synthesis of Tryptanthrin Spiro Analogues with In Vitro Antitumor Activity Based on One-Pot, Three-Component 1,3-Dipolar Cycloaddition of Azomethine Ylides to Сyclopropenes". Synthesis 51, № 03 (2018): 713–29. http://dx.doi.org/10.1055/s-0037-1611059.

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A simple, efficient and atom-economic method has been developed for the synthesis of complex alkaloid-like compounds with spiro-fused indolo[2,1-b]quinazoline and cyclopropa[a]pyrrolizine or 3-azabicyclo[3.1.0]hexane moieties. We have found that one-pot, three-component 1,3-dipolar cycloaddition reactions allow the desired products to be obtained from various cyclopropene derivatives with tryptanthrin-derived azomethine ylides generated in situ, in good to high yields and excellent diastereoselectivity. The possibility of ylide generation was exemplified by using α-amino acids (l-proline, l-4-

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38

Chen, Chao, Chanjuan Xi, Yanfeng Jiang, and Xiaoyin Hong. "Michael addition reactions of Grignard reagents to 2-halogenoacrylates: a convenient method for the synthesis of polysubstituted cyclopropane compounds." Tetrahedron Letters 45, no. 31 (2004): 6067–69. http://dx.doi.org/10.1016/j.tetlet.2004.05.158.

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39

DRAUX, M., I. BERNAL, and R. FUCHS. "ChemInform Abstract: Conglomerate Crystallization in Organic Compounds. Part 2. The Conformation, Configuration, and Spontaneous Resolution of 1-Phenyl-2-cyano-cyclopropane." ChemInform 22, no. 26 (2010): no. http://dx.doi.org/10.1002/chin.199126066.

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40

Kholodniak, O. V., V. V. Stavytskyi та S. I. Kovalenko. "Substituted (сycloalkylcarbonylthioureido)aryl-(benzyl-)carboxylic(sulfonic) acids: synthesis, antimicrobial and growth-regulating activity". Current issues in pharmacy and medicine: science and practice 14, № 1 (2021): 4–11. http://dx.doi.org/10.14739/2409-2932.2021.1.226726.

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Acylisothiocyanates are a promising class of organic compounds that are present in the plant world and can be used in the synthesis of disubstituted thioureas and various heterocycles. These derivatives are characterized by growth-regulating, antibacterial, fungicidal, cytotoxicity, and other activities. Modification of acylisothiocyanates by fragments of substituted aminoarylcarboxylic (sulfo) acids is promising, as some of them (anthranilic, p-aminobenzoic acids) are precursors for the auxins and other natural compounds synthesis. Their combined activity is also an important aspect. Namely t

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41

Florio, Saverio, Filippo M. Perna, Renzo Luisi, José Barluenga, Francisco J. Fañanás та Félix Rodríguez. "Stereoselective Synthesis of Pentacarbonyl(3-oxa-2-bicyclo[3.1.0]hexylidene)- and Pentacarbonyl(cyclopropylmethoxymethylene)tungsten Compounds on the Route to Cyclopropane-γ-lactones and -carboxylates". Journal of Organic Chemistry 69, № 26 (2004): 9204–7. http://dx.doi.org/10.1021/jo048731v.

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Shintawati, Shintawati, and Zulfahmi Zulfahmi. "IDENTIFIKASI MINYAK CITRONELLA DENGAN GCMS DAN APLIKASINYA SEBAGAI MINYAK ANGIN AROMATERAPI [Identification of Citronella Oil With GCMS and Its Application In Aromatherapy Medicated Oil Formulation]." Jurnal Teknologi & Industri Hasil Pertanian 25, no. 2 (2020): 62. http://dx.doi.org/10.23960/jtihp.v25i2.62-70.

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This study aimed to identify citronella oil and find its application as safe aromatherapy medicated oil preferred by consumers. Medicated oil was made in 4 formulas with the ratio of menthol crystals, white oil, gandapura oil, citronella oil, peppermint oil and lemon oil 6: 1: 5: 2: 2: 4; 6: 1: 5: 0: 2: 6; 6: 1: 5: 0: 8: 0 and 6: 1: 5: 8: 0: 0. GCMS results showed that there were 60 volatile organic compounds in citronella oil with alcohol as the most abundant component and contained several compounds that play a role in the development of aromatherapy wind oil products, namely cyclopropane, g

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Shi, Yongjia, Qian Gao, and Senmiao Xu. "Iridium-Catalyzed Asymmetric C–H Borylation Enabled by Chiral Bidentate Boryl Ligands." Synlett 30, no. 19 (2019): 2107–12. http://dx.doi.org/10.1055/s-0039-1690225.

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Asymmetric synthesis of optically pure organoboron compounds is a topic that has received a number of attentions owing to their particular importance in synthetic chemistry and drug discovery. We herein highlight recent advances in the iridium-catalyzed C–H borylation of diarylmethylamines and cyclopropanes enabled by chiral bidentate boryl ligands.1 Introduction2 Ir-Catalyzed Asymmetric C(sp2)–H Borylation of Diarylmethylamines3 Ir-Catalyzed Enantioselective C(sp3)–H Borylation of Cyclopropanes4 Conclusion

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Ma, Shengming, Ning Jiao, Qing Yang, and Zilong Zheng. "Highly Regio- and Stereoselective Synthesis of Polysubstituted Cyclopropane Compounds via the Pd(0)-Catalyzed Coupling−Cyclization Reaction of 2-(2‘,3‘-Allenyl)malonates with Organic Halides." Journal of Organic Chemistry 69, no. 19 (2004): 6463–66. http://dx.doi.org/10.1021/jo049323u.

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Prostakov, N. S., Mikhalis Makuli, N. M. Mikhailova, Hussein Abubakr, N. D. Sergeeva, and A. A. Obynochnyi. "Synthesis of spiro compounds with 3-methyl-2-azafluorene, indan, pyrazoline, and cyclopropane fragments on the basis of 3-methyl-9-phenylethynyl-2-azafluoren-9-ol." Chemistry of Heterocyclic Compounds 21, no. 4 (1985): 449–52. http://dx.doi.org/10.1007/bf00504410.

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Fritschi, Hugo, Urs Leutenegger, and Andreas Pfaltz. "Semicorrin metal complexes as enantioselective catalysts. Part 2. Enantioselective cyclopropane formation from olefins with diazo compounds catalyzed by chiral (semicorrinato)copper complexes." Helvetica Chimica Acta 71, no. 6 (1988): 1553–65. http://dx.doi.org/10.1002/hlca.19880710621.

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Boitsov, Vitali M., Alexander V. Stepakov, Siqi Wang, et al. "Construction of Spiro[3-azabicyclo[3.1.0]hexanes] via 1,3-Dipolar Cycloaddition of 1,2-Diphenylcyclopropenes to Ninhydrin-Derived Azomethine Ylides." Synthesis 53, no. 12 (2021): 2114–32. http://dx.doi.org/10.1055/a-1360-9716.

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AbstractThe multi-component 1,3-dipolar cycloaddition of ninhydrin, α-amino acids (or peptides), and cyclopropenes for the synthesis of spirocyclic heterocycles containing both 3-azabicyclo[3.1.0]hexane and 2H-indene-1,3-dione motifs has been developed. This method provides easy access to 3-azabicyclo[3.1.0]hexane-2,2′-indenes with complete stereoselectivity and a high degree of atom economy under mild reaction conditions. A broad range of cyclopropenes and α-amino acids have been found to be compatible with the present protocol, which offers an opportunity to create a new library of biologica

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Merkley, Nadine, Paul C. Venneri, and John Warkentin. "Cyclopropanation of benzylidenemalononitrile with dialkoxycarbenes and free radical rearrangement of the cyclopropanes." Canadian Journal of Chemistry 79, no. 3 (2001): 312–18. http://dx.doi.org/10.1139/v01-017.

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Thermolysis of 2-cinnamyloxy-2-methoxy-5,5-dimethyl-Δ3-1,3,4-oxadiazoline (1a) and the analogous 2-benzyloxy-2-methoxy compound (1b) at 110°C, in benzene containing benzylidenemalononitrile, afforded products of apparent regiospecific addition of methoxycarbonyl and cinnamyl (or benzyl) radicals to the double bond. When the thermolysis of 1a was run with added TEMPO, methoxycarbonyl and cinnamyl radicals were captured. Thermolysis of the 2,2-dibenzyloxy analogue (1c) in the presence of benzylidenemalononitrile gave an adduct that is formally the product of addition of benzyloxycarbonyl and ben

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de Meijere, Armin, Dietmar Faber, Ute Heinecke, Robin Walsh, Thomas Müller, and Yitzhak Apeloig. "On the Question of Cyclopropylidene Intermediates in Cyclopropene-to-Allene Rearrangements − Tetrakis(trimethylsilyl)cyclopropene, 3-Alkenyl-1,2,3-tris(trimethylsilyl)cyclopropenes, and Related Model Compounds." European Journal of Organic Chemistry 2001, no. 4 (2001): 663–80. http://dx.doi.org/10.1002/1099-0690(200102)2001:4<663::aid-ejoc663>3.0.co;2-e.

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Ho, Hien The, Véronique Montembault, Marion Rollet, et al. "Radical ring-opening polymerization of novel azlactone-functionalized vinyl cyclopropanes." Polymer Chemistry 11, no. 24 (2020): 4013–21. http://dx.doi.org/10.1039/d0py00493f.

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