Ochiai Masahito, Tada Norihiro, Nishi Yoshio, Murai Kentaro
Faculty of Pharmaceutical Sciences, University of Tokushima, 1-78 Shomachi, Tokushima 770-8505, Japan.
Chem Commun (Camb). 2004 Dec 21(24):2894-5. doi: 10.1039/b410830b. Epub 2004 Sep 27.
Exposure of 1-alkynylp-(trifluoromethyl)phenyl-lambda(3)-bromanes to sodium benzenesulfinate or sodium trifluoromethanesulfinate in dichloromethane at 0 degree C under argon resulted in tandem Michael-carbene insertion reactions to produce 1-sulfonylcyclopentenes selectively, with concomitant formation of a small amount of rearranged 1-alkynyl sulfones.
在氩气氛围下,于0℃将1-炔基[对(三氟甲基)苯基](四氟硼酸根)-λ(3)-溴烷与苯亚磺酸钠或三氟甲磺酸钠在二氯甲烷中反应,会发生串联迈克尔-卡宾插入反应,选择性地生成1-磺酰基环戊烯,并伴随少量重排的1-炔基砜的形成。