作者:Karsten Krohn、Stephan Cludius-Brandt
DOI:10.1055/s-0029-1218658
日期:2010.4
Secondary benzylic or aliphatic α-hydroxydithianes 1a-c rearrange to α-thioketones when treated with acid. Related tertiary alcohols 1d-g eliminate to dithioketene ketals (e.g., 2d), which are ring-opened to thiols in some cases (1e, 1f). Allylic α-hydroxydithianes 1h and 1i form the thioesters 2h and 2i (homologation), and the tertiary alcohols 1j and 1k undergo deoxygenation to 2j and 2k. 1,3-dithianes
当用酸处理时,仲苄基或脂族α-羟基二硫杂环丁烷1a - c重新排列为α-硫酮。相关的叔醇1d - g消除了二硫代酮烯缩酮(例如2d),后者在某些情况下(1e,1f)对硫醇开环。烯丙基α-羟基二硫杂环丁烷1h和1i形成硫酯2h和2i(同位),叔醇1j和1k脱氧成2j和2k。 1,3-二噻烷-二硫缩醛-1,3-二噻-1-氧化物-重排-脱氧-同源