Synthetic Applications of the Baylis–Hillman Adducts: A Simple Stereoselective Synthesis of (E)-3-(Nitroxymethyl)alk-3-en-2-ones
摘要:
First simple, stereoselective synthesis of (E)-3-(nitroxymethyl)alk-3-en-2-ones from Baylis-Hillman adducts (4-hydroxy-3-methylenealkan-2-ones) is described. (C) 2000 Elsevier Science Ltd. All rights reserved.
The pure (3E)-3-(methoxymethyl)alk-3-en-2-ones and (3E)-3-(ethoxymethyl)alk-3-en-2-ones are formed in the acid induced reaction of 4-hydroxy-3-methylenealkan-2-ones with methanol and ethanol, respectively.
A simple and expedient synthesis of (Z)-keto allyl bromides and chlorides, from the Baylis-Hillman adducts is described.
描述了从Baylis-Hillman加合物简单且方便地合成(Z)-酮烯丙基溴和氯化物。
<i>N</i>-Alkylimidazole
as Amphiphilic Organocatalyst: ‘Catalytic’ Morita-Baylis-Hillman
Reaction on Water without Organic Solvent
作者:Seijiro Matsubara、Keisuke Asano
DOI:10.1055/s-0028-1087484
日期:——
In the presence of water, a Morita-Baylis-Hillman reaction between methyl vinyl ketone and various aldehydes was performed with a catalytic amount of an imidazole carrying a hydrophobic group.