Herein, we report the first synthesis of difluoromethanesulfinate esters via the direct difluoromethanesulfinylation of alcohols with HCF2SO2Na/Ph2P(O)Cl. Primary, secondary, and tertiary alcohols were converted to the corresponding difluoromethanesulfinate esters in good to excellent yields under mild conditions. The late-stage functionalization of complexed biologically active natural products was
在这里,我们报道了通过使用HCF 2 SO 2 Na / Ph 2 P(O)Cl进行醇的直接二氟甲亚磺酰化来首次合成二氟甲亚磺酸酯。在温和条件下,伯醇,仲醇和叔醇可以良好的产率转化为相应的二氟甲亚磺酸酯。还证明了复杂的生物活性天然产物的后期功能化。该方法扩展到在催化量的Me 3 SiCl存在下使用CF 3 SO 2 Na进行醇的三氟甲烷亚磺酰化,以提供三氟甲烷亚磺酸酯。
US6156163A
申请人:——
公开号:US6156163A
公开(公告)日:2000-12-05
US6506286B1
申请人:——
公开号:US6506286B1
公开(公告)日:2003-01-14
Facile Synthesis of Aryl- and Alkyl-bis(trifluoromethylsulfonyl)methanes
Various arylbis(trifluoromethylsulfonyl)methanes (1) have been synthesized by reacting the corresponding benzylic halides with sodium trifluoromethanesulfinate and then with triflic anhydride. In addition, when the aryl group of 1 is a pentafluorophenyl group, the nucleophilic para-substitution of the aryl group with alkyllithiums and sodium alkoxides occurs. This reaction is useful for the design of new Brønsted acids.