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Relevant bibliographies by topics / Morpholines – chemical synthesis

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Journal articles

Academic literature on the topic 'Morpholines – chemical synthesis'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Morpholines – chemical synthesis"

1

Reddy, B. Jayachandra, and M. C. Somasekhara Reddy. "Ultrasonicated Synthesis ofN-Benzyl-2,3-substituted Morpholines, via the Mitsunobu Diol Cyclisation." E-Journal of Chemistry 7, no. 4 (2010): 1184–89. http://dx.doi.org/10.1155/2010/931015.

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A facile five step synthesis ofN-benzyl-2,3-substituted morpholines (i-iii) was performed. The key steps were microwave assisted Friedel-crafts acylation and diol cyclization carried out via an ultra sonication of Mitsunobu reaction using DEAD (diethylazodicarboxylate), TPP in THF for 1 h. The morpholine products were generated as diasteriomers (iiandiii) which has been separated by the column chromatography to good yield. The structure of compounds (i-iii) has been characterized by the spectral and chemical studies.

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2

Magerramov, A. M., M. N. Magerramov, Kh A. Makhmudova, and G. I. Alizade. "Synthesis of N-Substituted Oxazolidines and Morpholines." Russian Journal of Applied Chemistry 78, no. 8 (2005): 1301–5. http://dx.doi.org/10.1007/s11167-005-0502-x.

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3

Beng, Timothy K., Abdikani Omar Farah, and Victoria Shearer. "Modular synthesis and transition metal-free alkynylation/alkenylation of Castagnoli–Cushman-derived N,O- and N,S-heterocyclic vinyl chlorides." RSC Advances 10, no. 61 (2020): 37153–60. http://dx.doi.org/10.1039/d0ra06619b.

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A functional group-tolerant and transition metal-free coupling of novel N,O- and N,S-heterocyclic vinyl chlorides, which affords fully carbosubstituted dihydro-1,4-oxazines/thiazines as well as bicyclic morpholines, is described.

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4

Cera, Gianpiero, Michel Chiarucci, and Marco Bandini. "Accessing chemical diversity by stereoselective gold-catalyzed manipulation of allylic and propargylic alcohols." Pure and Applied Chemistry 84, no. 8 (2012): 1673–84. http://dx.doi.org/10.1351/pac-con-11-09-05.

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The combined use of asymmetric Au(I) catalysis with allylic as well as propargylic alcohols proved to be a competent synthetic tool, toward the realization of complex molecular organic architectures in a stereochemically defined manner. In particular, allylic alcohols have been utilized as alkylating agents in the synthesis of tetrahydrocarbazoles/carbolines and morpholines by means of new C–C and C–X bond-forming processes. Analogously, the direct activation of indole-propargylic alcohols with cationic Au complexes opened a direct access to tetracyclic fused indolines in a highly stereoselect

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5

Rasulov, Ch K., A. G. Azizov, F. A. Nabiev, S. T. Rustamov, and A. S. Askerova. "Synthesis of N-[2-hydroxy-4(5)-methyl- and -5-(methylcyclohexyl)benzyl]morpholines as antioxidants for transformer oils." Russian Journal of Applied Chemistry 83, no. 12 (2010): 2140–43. http://dx.doi.org/10.1134/s107042721012013x.

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6

Journal, Baghdad Science. "Synthesis, Characterization and Study the Biological Activity of New Morpholine Derivative." Baghdad Science Journal 12, no. 4 (2015): 761–73. http://dx.doi.org/10.21123/bsj.12.4.761-773.

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A new series of morpholine derivative were prepared by reacting the morpholine with ethyl chloro acetate in the presence triethylamine as an catalyst and benzene as a solvent gave the ethyl morpholin-4-ylacetate reaction with hydrazine hydrate and ethanol as a solvent gave the 2-(morpholin-4-yl)acetohydrazide gave series of Schiff base were prepared by reacting 2-(morpholin-4- yl)acetohydrazide with different aromatic aldehydes and ketons . The new series of (3-9 )were synthesis by reaction of Schiff base (10-14) with chloroacetyl chloride, triethyl amine as an catalyst and 1,4dioxane as a sol

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7

D’hooghe, Matthias, Stijn Dekeukeleire, Erika Leemans та Norbert De Kimpe. "Use of functionalized β-lactams as building blocks in heterocyclic chemistry". Pure and Applied Chemistry 82, № 9 (2010): 1749–59. http://dx.doi.org/10.1351/pac-con-09-09-39.

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β-Lactams represent flexible building blocks suitable for the preparation of a large variety of nitrogen-containing target compounds. In the present study, the formerly neglected synthetic potential of 4-haloalkyl-β-lactams has been elaborated in detail with a focus on the preparation of different mono- and bicyclic heterocycles. A first approach involved ring transformations of these halogenated building blocks toward stereodefined aziridines, azetidines, pyrrolidines, and piperidines via intermediate aziridinium or azetidinium ions. In a second part, novel and stereoselective entries into 1,

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8

Hermecz, István, Andrea Sánta-Csutor, Csaba Gönczi, et al. "Chemical development of the vasopressin receptor 2 antagonist SR-121463." Pure and Applied Chemistry 73, no. 9 (2001): 1401–9. http://dx.doi.org/10.1351/pac200173091401.

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A facile convergent total synthesis of the selective, potent, and orally active V2 non-peptide antagonist, SR-121463, was developed by modification of the discovery route. One of the late intermediates, the sulfonyl chloride 1, was synthesized from 3-hydroxybenzoic acid (19) by regioselective sulfonation, O-methylation and amidation in four steps. Another late intermediate, indolin-2-one 2, was prepared from p-phenetidine (8) through the indolin-2-one 16, where the cyclohexanone moiety of 27 was introduced into the active 3-methylene group of 16 by sequential transformation using methyl acryla

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9

Kumar, Praveen, Jai Prakash Kumar, Juhi Barnwal, and Ritu Singh. "Design, Synthesis and Molecular Docking Studies of 4-{3-[2-(2-Morpholin-4-yl-ethoxy)phenyl]-5-phenyl-pyrazol-1-yl}-benzenesulfonamide as Anti-Breast Cancer Agent." Asian Journal of Organic & Medicinal Chemistry 5, no. 4 (2020): 301–6. http://dx.doi.org/10.14233/ajomc.2020.ajomc-p271.

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Novel 4-{3-[2-(2-morpholin-4-yl-ethoxy)phenyl]-5-phenyl-pyrazol- 1-yl}benzenesulfonamide (7) was synthesized and evaluated for its anti-breast cancer activity. It was prepared by cyclocondensation reaction of morpholine-substituted β-diketone, 1-[2-(2-morpholin-4-yl-ethoxy)- phenyl]-3-phenyl-propane-1,3-dione (3) with 4-hydrazinobenzenesulfonamide hydrochloride (6). Chemical structure of titled compound (7) was confirmed by FTIR, 1H & 13C NMR and HRMS spectroscoic analyses. The anticancer activity of titled compound 7 was evaluated against MCF-7 breast cancer cell line by MTT assay. Molecu

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10

Barker, David, Benjamin Dickson, Nora Dittrich, and Claire E. Rye. "An acyl-Claisen approach to the synthesis of lignans and substituted pyrroles." Pure and Applied Chemistry 84, no. 7 (2012): 1557–65. http://dx.doi.org/10.1351/pac-con-11-09-27.

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The acyl-Claisen rearrangement, also called a zwitterionic aza-Claisen rearrangement, allows for the synthesis of 2,3-syn-substituted morpholine pent-4-eneamides with high levels of diastereoselectivity. A wide variety of alkyl and aryl substituents can be introduced with yields highly dependent on the stoichiometry of the Lewis acid catalyst. The use of these morpholine amides in the synthesis of the tetrasubstituted tetrahydrofuran lignans fragransin A2, talaumidin, and galbelgin is summarized. The conversion of the Claisen-derived amides into aryl tetraline and 1,1-diarylbutanol lignans via

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