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A Convenient Preparation of Fluorinating Reagent F‐TEDA Bearing Bisphenylsulfonylimide Counterion and Its Fluorination to Oxindoles
Author(s) -
Zhu Wenhua,
Hu Xiaohui,
Wang Fajie,
Yang Xianjin,
Wu Xinyan
Publication year - 2015
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201400680
Subject(s) - chemistry , reagent , yield (engineering) , salt (chemistry) , counterion , organic chemistry , ion , metallurgy , materials science
The direct preparation of a kind of fluorinating reagent 1 [F‐TEDA‐N(SO 2 Ph) 2 ] was realized in high yield via the complexation of N ‐fluorobenzenesulfonimide (NFSI) with 1‐(chloromethyl)‐1,4‐diazabicyclo[2.2.2]octan‐1‐ium N′ , N′ ‐bis‐(benzenesulfonylimide) salt. In its fluorination to oxindoles, the fluorinating products 6 were afforded in moderate to high yields.