报道了末端炔烃的立体选择性且环境友好的硫醇化。二硫化秋兰姆试剂(二硫化四甲基秋兰姆和二硫化四乙基秋兰姆)与炔烃在二甲亚砜(DMSO)/H 2 O中反应可以以良好的收率(高达88%)得到( Z )-乙烯基硫醚。该方案具有底物范围广、立体选择性好、原子经济性高、收率好、不含过渡金属等特点。机理研究表明,水和DMSO作为氢源,这极大地凸显了这种涉及两个氢原子供体的特殊反应的独特反应性。
(.alpha.-Haloalkyl)phosphonium salts and sulfur nucleophiles: a new type of reaction mechanism
作者:Remo Galli
DOI:10.1021/jo00233a008
日期:1987.11
A Novel Synthesis of Vinyl Dithiocarbamates<i>via</i>Phosphonium Ylides
作者:Zhi-Zhen Huang、Lu Ling Wu
DOI:10.1080/00397919608003642
日期:1996.2
In the presence of potassium carbonate, N,N-dimethylamino thiocarbonyl thiomethyl triphenylphosphonium bromide can form the corresponding ylide in situ, which can undergo Wittig reaction with aldehydes to give vinyl dithiocarbamates in high yields. If the esters were hydrolysized in the presence of mercuric chloride, a new method to lengthen aldehydes by one carbon atom was accomplished.
A new method for the synthesis of dithiocarbamates by CuI-catalyzed coupling reaction
作者:Yunyun Liu、Weiliang Bao
DOI:10.1016/j.tetlet.2007.03.168
日期:2007.7
The Ullmann-type coupling reaction of sodium dithiocarbamates with aryl iodides and vinyl bromides catalyzed by CuI/N,N-dimethylglycine proceeds smoothly in DMF at 110 degrees C to give corresponding dithiocarbarnates in good yields. (c) 2007 Published by Elsevier Ltd.