N-ACYLATION

作品数:4被引量:0H指数:0
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相关领域:理学更多>>
相关期刊:《Chemical Research in Chinese Universities》《Chinese Journal of Structural Chemistry》《Chinese Chemical Letters》更多>>
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Synthesis of Novel Chiral 7-Amide Substituted-4-androstene-3,17-dione Derivatives
《Chemical Research in Chinese Universities》2011年第4期604-609,共6页CHEN Shao-rui ZHOU Xue-qin LI Wei LIU Dong-zhi 
Supported by the National Natural Science Foundation of China(No.20576094)
A series of novel 7-amide substituted-4-androstene-3,17-dione derivatives(8αa "8αh or 8βa "8βh) was synthesized from the important intermediates 5 by N-acylation and acidic hydrolysis.Compounds 5α and 5β wer...
关键词:ANDROSTENEDIONE Allylic oxidation Reduction N-ACYLATION 
Synthesis and Crystal Structure of Diethyl-2,6-dimethyl-3,5-diyl-(1-(2-chlorobenzoyl)-1H- pyrazole-3-diethyl-carboxylate)-pyridine
《Chinese Journal of Structural Chemistry》2008年第10期1163-1166,共4页钱群 张敏 李志芬 曹卫国 张军 邵敏 夏义本 
the Key Subject of Shanghai Municipal Education Commission(J50102);the Foundation of Education Commission of Shanghai Municipality(08zz44)
The reaction of hydrazine hydrate with a new α,γ-diketone ester 3, derived from the reaction of 2,6-dimethyl-3,5-diacetyl-pyridine 2 with diethyl oxalate in the presence of sodium ethoxide, afforded the pyrazole der...
关键词:PYRIDINE PYRAZOLE N-ACYLATION crystal structure 
Studies on O-,N-Acylation of 3-Hydroxyisoxazole and Their Regioselective Synthesis(Ⅰ)——O-,N-acylation of 5-Methyl-3-hydroxyisoxazole with 2,2-Dimethyl 3-Substituted Cyclopropanecarboxylic Chlorides
《Chemical Research in Chinese Universities》1992年第2期75-80,共6页SHAO Rui-lian and ZHU You-quan(National Laboratory of Elemento-Organic Chemistry,Institute of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071)XUE Jie-you (Department of Chemistry, Nankai University, Tianjin, 300071) 
Supposed by the National Natural Science Foundation of China
The reactions of 5-methyl-3-hydroxyisoxazole with 2, 2-dimethyl, 3-substituted cyclopropanecarboxylic chlorides give O-acyl-5-methyl-3-hydroxyisoxazole and N-acyl-5-methylisoxazolin-3-one derivatives. The ratio of O-a...
关键词:O- N-ACYLATION Hydroxyisoxazole Cyclopropanecarboxylic acid Acyl transfer Synthesis. 
HIGHLY REGIOSELECTIVE O-AND N-ACYLATION OF 5-METHYL-3-HYDROXYISOXAZOLE
《Chinese Chemical Letters》1992年第3期175-176,共2页Rui Lian SHAO Cheng Xin ZHI You Quan ZHU Jie You XUE 
This project was supported by the NSFC.
Acylation of 5-methyl-3-hydroxyisoxazole (1) with 3-substituted cyclopropanecarboxylic chlorides (3) in the presence of triethylamine (TEA) in acetonitrile yields predominantly O-acylated products (4).The N-acyl isom...
关键词:HIGHLY REGIOSELECTIVE O-AND N-ACYLATION OF 5-METHYL-3-HYDROXYISOXAZOLE TEA 
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