Tetrahedron

Development of N, N-bis (perfluoroalkanesulfonyl) squaramides as new strong Brønsted acids and their application to organic reactions

CH Cheon, H Yamamoto

文献索引：Cheon, Cheol Hong; Yamamoto, Hisashi Tetrahedron, 2010 , vol. 66, # 24 p. 4257 - 4264

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被引用次数: 22

摘要

New strong Brønsted acids derived from a squaric acid scaffold bearing different perfluoroalkanesulfonyl groups have been developed and applied to several organic reactions. These squaramides are bench-stable and exhibit much higher reactivities in several organic reactions than squaric acid itself. N, N-Bis (trifluoromethanesulfonyl) squaramide 2a was applied to the Mukaiyama aldol reaction and Mukaiyama Michael ...