A new entry for the synthesis of 3-alkyl substituted 5-vinyloxazolidin-2-one derivatives 2 from cis-2-butenylene-1,4-dicarbonate 1 and primary amines mediated by palladium–phosphine catalysts is described. The scope and limitation, a plausible mechanism, and an asymmetric version of the reaction are also discussed.
Platinum-Catalyzed Cyclization of N-Allyl Carbamates for the Synthesis of 5-Vinyloxazolidinones
作者:Hyo-Sang Yoon、Ju-Hye Kim、Eun Joo Kang、Hye-Young Jang
DOI:10.1002/ejoc.201101799
日期:2012.4
Platinum-catalyzed addition of the oxygen nucleophile of a carbamate to an allyl bromide was carried out to afford a range of biologically active 5-vinyl-substituted oxazolidinones in good yields. Over the course of the reaction, a platinum complex, SnCl2, and the allyl bromide are assumed to generate an electrophilic allyl-platinum intermediate in the presence of carbamate oxygen nucleophiles. This