La reaction de derives de tellurobenzoates de Te-butyle avec le butyl lithium puis avec differents electrophiles (dimethyl-3,3 butanone-2 ou dimethyl-2,2 propanal) donnent des derives d'hydroxy-2 trimethyl-2,3,3 butyrophenone ou d'hydroxy-4 tetramethyl-2,2,5,5 hexanone-3
La 反应 de 派生 de 碲苯甲酸盐 de Te-butyle avec le 丁基锂 puis avec 不同的亲电试剂 (二甲基-3,3 丁酮-2 或二甲基-2,2 丙醛) donnent des 派生 d'hydroxy-2 trimethyl-2,3,3 butyrophenone ou d'hydroxy-4 tetramethyl-2,2,5,5 hexanone-3
“<i>Syn-Effect</i>” in the Desilylation Reaction of γ-Silylated Allylic and Vinylic Sulfones
The desilylation reaction of γ-silylated allylic sulfones was found to proceed through γ-silylated (E)-vinylic sulfones to afford the corresponding allylic sulfones by treatment with DBU and H2O. The Z/E ratio of the resulting allylic sulfones varied according to the γ-substituents of the γ-silylated sulfones. This stereochemical outcome was rationalized by “syn-effect.”
Acylsilanes are prepared in good yields by the reaction of acid chlorides (or anhydrides) with LiAl(SiMe3)4 or LiMeAl(SiMe3)3 in the presence of a catalytic amount of CuCN.