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Relevant bibliographies by topics / Steroidal enamine

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Academic literature on the topic 'Steroidal enamine'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "Steroidal enamine"

1

Shamsuzzaman, Siddiqui Nazish, and Siddiqui Tabassum. "Synthesis of steroidal enamine - pyrrolidine derivative." Journal of Indian Chemical Society Vol. 81, Nov 2004 (2004): 972–73. https://doi.org/10.5281/zenodo.5833609.

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Department of Chemistry, Aligarh Muslim University, Aligarh-202 002, India <em>Manuscript received 4 December 2003, revised 27 May 2004, accepted 11 June 2004</em> Synthesis or steroidal enamine-pyrrolidine derivative (3) from 3β-acetoxycholest-5-en-7-one (1) and 3β-chlorocholest-5-en-7-one (2) using pyrrolidine is described.

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2

Lopes, Susana M. M., Clara S. B. Gomes, and Teresa M. V. D. Pinho e Melo. "Reactivity of Steroidal 1-Azadienes toward Carbonyl Compounds under Enamine Catalysis: Chiral Penta- and Hexacyclic Steroids." Organic Letters 20, no. 14 (2018): 4332–36. http://dx.doi.org/10.1021/acs.orglett.8b01783.

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3

GELLA, I. M., G. A. BRYZGALOVA та L. YU SERGIENKO. "ChemInform Abstract: Steroidal Oxetanes. Part 2. Incorporation of Oxirane and Oxetane Rings into δ4-3-Ketosteroids Using Enamine Protection." ChemInform 26, № 35 (2010): no. http://dx.doi.org/10.1002/chin.199535238.

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4

Penov Gaši, Katarina M., Dušica Rackov Čolic, Otto N. Arcson, et al. "Improved Methods for Obtaining Immonium Perchlorates and Enamines of Solanidine Type Steroidal Alkaloids." Collection of Czechoslovak Chemical Communications 61, no. 11 (1996): 1655–61. http://dx.doi.org/10.1135/cccc19961655.

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Oxidation of solanidine and some of its derivatives with mercury(II) acetate in acetone afforded corresponding N-22 immonium perchlorates or 22(23)-enamines. It has been found that the effect of solvents on regioselectivity e.g. formation N-22 and N-16 immonium salts, was remarkable. The isomerisation of 22(23)-enamines into corresponding 20(22)-enamines, potentialy important intermediates in planned chemical degradation of solanidine to steroidal hormones, was performed in 0.1% acetic acid in ether, or in dichloromethane (chloroform).

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5

Baranovsky, Alexander V., Marinus B. Groen, Aede de Groot, Raissa P. Litvinovskaya та Vladimir A. Khripach. "Synthesis of 17β-Isoxazolyl Steroids and Spiro[steroid-17,2'-furanone]s". Collection of Czechoslovak Chemical Communications 63, № 10 (1998): 1564–74. http://dx.doi.org/10.1135/cccc19981564.

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Synthesis of 17β-isoxazolyl steroids and their transformations into the corresponding spiro[steroid-17,2'-furanone]s are described. The reaction sequence consists of the 1,3-dipolar cycloaddition of a nitrile oxide to mestrenol, dehydration, epoxidation or dihydroxylation, cleavage of the isoxazole moiety and cyclization of intermediate enamino ketones.

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6

Mohareb, Rafat, and Hanaa Hana. "Synthesis of progesterone heterocyclic derivatives of potential antimicrobial activity." Acta Pharmaceutica 58, no. 1 (2008): 29–42. http://dx.doi.org/10.2478/v10007-007-0043-3.

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Synthesis of progesterone heterocyclic derivatives of potential antimicrobial activityThe aim of this work was to synthesize steroidal heterocycles and to elucidate the potential role of these compounds as antimicrobial agents. The synthesis of steroidal heterocycles containing the pyrazole, isoxazole, thiazole, pyrane, pyridine, pyridazine, or benzopyrane ring attached to the pregnene nucleus is reported. Progesterone (1) reacts with dimethyl formamide dimethyl acetal to form enamine2. Heterocyclization of2with hydrazines, hydroxylamine, glycine, ethyl acetoacetate or cyanomethylene afforded

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7

Edwards, Oliver E., Gunnar Grue-Sørensen, and Barbara A. Blackwell. "Thermolysis and photolysis of two steroidal hydroxamic acid methanesulfonates." Canadian Journal of Chemistry 75, no. 6 (1997): 857–72. http://dx.doi.org/10.1139/v97-104.

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Thermolysis or photolysis of N-methanesulfonyloxy-4-aza-5α-cholestan-3-one gave derivatives of 4-azacholestan-3-one, 4-aza-A-nor-B-homocholestan-3-one, 3-aza-A-norcholestane, bis(4-aza-3-oxocholest-5-en-6-yl) methane, and bis(3-aza-A-norcholestan-3-yl) urea. The corresponding 5β-methanesulfonate gave the 5β (coprostane) analogues. Evidence for the mechanism of formation of these products, including a Favorski-like ring contraction and amide oxidation by methanesulfonic acid, is presented. Detailed 1H and 13C assignments are made for many of the products, and ultraviolet absorption for seven st

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8

Barthakur, Madan G., Moyurima Borthakur, and Romesh C. Boruah. "Convenient preparation of A-ring fused pyridines from steroidal enamides." Steroids 73, no. 11 (2008): 1137–42. http://dx.doi.org/10.1016/j.steroids.2008.04.016.

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9

Suginome, Hiroshi, Makoto Kaji та Shinji Yamada. "Photo-induced molecular transformations. Part 87. Regiospecific photo-Beckmann rearrangement of steroidal α,β-unsaturated ketone oximes: synthesis of some steroidal enamino lactams". J. Chem. Soc., Perkin Trans. 1, № 2 (1988): 321–26. http://dx.doi.org/10.1039/p19880000321.

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10

Poirier, Donald, та René Maltais. "NMR-Assisted Structure Elucidation of an Anticancer Steroid-β-Enaminone Derivative". Magnetochemistry 3, № 4 (2017): 37. http://dx.doi.org/10.3390/magnetochemistry3040037.

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Dissertations / Theses on the topic "Steroidal enamine"

1

Puchot, Catherine. "Contribution à l'étude des synthèses asymétriques catalysées par les acides aminés." Paris 6, 1986. http://www.theses.fr/1986PA066136.

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2

Santos, Joana Rita Cerveira. "Síntese de Novos Esteroides Penta- e Hexacíclicos partindo de 1-Azadienos Esteroidais." Master's thesis, 2019. http://hdl.handle.net/10316/87929.

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Dissertação de Mestrado em Química apresentada à Faculdade de Ciências e Tecnologia<br>Steroids are a class of compounds that are widely distributed in nature and which exhibit a wide spectrum of biological activities. In addition to the typical high hormonal activity of steroids, they may also exhibit strong antimicrobial, anti-inflammatory and anticancer activity. Currently, structural modification of the steroid nucleus, particularly the introduction of heteroatoms or heterocycles, is a strategy successfully used in order to modulate its biological properties.The Organic Chemistry research

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3

Wu, Yao-Ting. "β-Aminosubstituted α,β-Unsaturated Fischer Carbene Complexes as Precursors for Complex Oligocyclic Molecules - Basics and Applications". Doctoral thesis, 2003. http://hdl.handle.net/11858/00-1735-0000-0006-B61B-7.

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4

Klapa, Katharina Anna. "Untersuchungen zur Synthese von Yohimban- und Campthoteca-Alkaloiden durch Domino-Knoevenagel-Hetero-Diels-Alder-Reaktion." Doctoral thesis, 2007. http://hdl.handle.net/11858/00-1735-0000-0006-AC9C-5.

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