作者:Nathan D. Shapiro、F. Dean Toste
DOI:10.1021/ja070789e
日期:2007.4.1
A series of gold(I)-catalyzed rearrangement reactions of alkynyl sulfoxides are reported. Homopropargylsulfoxides are rearranged to benzothiepinones or benzothiopines, while α-thioenones are formed in the reaction of propargylsulfoxides. The proposed mechanism proceeds via an α-carbonyl gold−carbenoid intermediate formed through gold-promoted oxygen atom transfer from the sulfoxide to the alkyne.
报道了一系列金 (I) 催化的炔基亚砜重排反应。高炔丙基亚砜重排为苯并噻吩酮或苯并噻吩,而α-硫烯酮在炔丙基亚砜的反应中形成。所提出的机制是通过金促进的氧原子从亚砜转移到炔烃形成的 α-羰基金-类胡萝卜素中间体进行的。