Journal ArticleDOI
Steroids. 3. A new synthetic approach to optically active steroids. Total synthesis of (+)-18-hydroxyestrone
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Synthese du compose du titre a partir de l'oxo-3acetoxy-5cyclopentenedicarboxylate-1,2 de dimethyle via un cetoester chiral utilise dans la synthese de PGF 2 α(+).Abstract:
Synthese du compose du titre a partir de l'oxo-3acetoxy-5cyclopentenedicarboxylate-1,2 de dimethyle via un cetoester chiral utilise dans la synthese de PGF 2 α(+)read more
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Enantioselective synthesis of steroids
Journal ArticleDOI
Oxidative carbonylation of aniline over Pd/C catalyst: effect of promoters, solvents, and reaction conditions
TL;DR: In this article, the effects of promoters, solvents, reaction conditions, and pretreatment of catalyst with reactants have been investigated for carbonylation of aniline to N,N′-diphenylurea over 5% Pd C NaI catalyst.
Journal ArticleDOI
Simple and high yielding syntheses of β-keto esters catalysed by zeolites
B.S. Balaji,Bhanu M. Chanda +1 more
TL;DR: In this paper, simple and high yielding syntheses of several β-keto esters, catalysed by zeolite Hβ, were reported, including condensation of aldehydes with ethyl diazoacetate and transesterification of β-keto esters with primary, secondary, allylic and benzylic alcohols.
Journal ArticleDOI
Cyanomethyl anion/carbon dioxide system: an electrogenerated carboxylating reagent. Synthesis of carbamates under mild and safe conditions.
TL;DR: The optimized conditions for the electrochemical synthesis of carbamates from amines and CO(2), in mild and safe conditions, without any addition of bases, probases, or catalysts are described.
Journal ArticleDOI
Synthesis of 2-oxazolidinone catalyzed by palladium on charcoal: a novel and highly effective heterogeneous catalytic system for oxidative cyclocarbonylation of β-aminoalcohols and 2-aminophenol
Fuwei Li,Chungu Xia +1 more
TL;DR: In this article, a Pd/C-I 2 heterogeneous catalytic system has been developed which gave excellent selectivity and high turnover frequency (TOF) values 15 times larger than the best results previously reported.