One pot michael addition, vinylsulfone isomerization and alkynyl to alkenyl triple bond reduction. Synthesis of a carbasugar related to Rancinamycin III
作者:Odón Arjona、Cristina Borrallo、Fátima Iradier、Rocío Medel、Joaquín Plumet
DOI:10.1016/s0040-4039(98)00109-9
日期:1998.4
Cyclohexenylsulfones 2 show a different behaviour in their reactions with Na/MeOH system depending on the nature of protecting groups R. In the case of R = TMS, the observed sequence Michael addition-vinylsulfone isomerization-alkynyl to alkenyl reduction has been used for the synthesis of a carbasugar related to the antibiotic Rancinamycin III. (C) 1998 Elsevier Science Ltd. All rights reserved.