Preparation of N,N-bis(trimethylsilyl)-1-alkenesulfenamides and their desilylative conversion to 1-alkenesulfenimines. New stable 1-alkenesulfenic acid derivatives
作者:Mitchell D. Refvik、Adrian L. Schwan
DOI:10.1016/0040-4020(96)00406-1
日期:1996.6
Eight stable N,N-bis(trimethylsilyl)-1-alkenesulfenamides (3) were synthesized by the reaction of 1-alkenesulfenate anions with TMSCl and LiHMDS. Compounds 3 were isolated either by distillation or by chromatography. 1-Alkenesulfenamides (3) can be desilylated in the presence of aldehydes and ketones that do not bear α-hydrogens, to afford 1-alkenesulfenimines (7) either as single isomers or as mixtures
通过1-链烯基磺酸根阴离子与TMSCl和LiHMDS的反应合成了八种稳定的N,N-双(三甲基甲硅烷基)-1-链烯基亚酰胺(3)。通过蒸馏或色谱法分离化合物3。可以在不带有α-氢的醛和酮的存在下将1-烯基次磺酰胺(3)进行甲硅烷基化,以单一异构体或围绕CN键的几何异构体的混合物形式提供1-链烯亚磺酰胺(7)。化合物3的原去甲硅烷基化生成在氮上仅具有氢的1-链烯基次磺酰胺(8)。母体1-烯烃亚磺酰胺8 不是特别稳定,但可以表征。