Tandem Pd/Au-Catalyzed Route to α-Sulfenylated Carbonyl Compounds from Terminal Propargylic Alcohols and Thiols
作者:Srijit Biswas、Rahul A. Watile、Joseph S. M. Samec
DOI:10.1002/chem.201304111
日期:2014.2.17
highly atom‐economical tandem Pd/Au‐catalyzed route to α‐sulfenylated carbonyl compounds from terminal propargylic alcohols and thiols has been developed. This one‐step procedure has a wide substrate scope with respect to substituents at the α‐position of the alcohol. Both aromatic and aliphatic thiols generated the α‐sulfenylated carbonyl products in good to excellent yields. A mechanism is proposed in
已经开发了一种高效且原子经济的串联Pd / Au催化路线,可从末端炔丙醇和硫醇制得α-亚磺酰化羰基化合物。就醇的α位上的取代基而言,此一步步骤具有广泛的底物范围。芳族硫醇和脂族硫醇均以良好至极好的收率生成α-亚磺酰基化的羰基产物。提出了一种机制,其中反应通过在炔丙醇的末端三键上的钯催化的区域选择性氢硫醇化反应,然后进行金催化的1,2-氢化物迁移。