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Start Over Author "Takagi, Taisei" Journal journal of the american chemical society
3 results on '"Takagi, Taisei"'

3. Benchtop-Stable Hypervalent Bromine(III) Compounds: Versatile Strategy and Platform for Air- and Moisture-Stable λ 3 -Bromanes.

Author

Miyamoto K, Saito M, Tsuji S, Takagi T, Shiro M, Uchiyama M, and Ochiai M

Abstract

We present the first synthesis of air/moisture-stable λ 3 -bromanes ( 9 and 10 ) by using a cyclic 1,2-benzbromoxol-3-one (BBX) strategy. X-ray crystallography and NMR and IR spectroscopy of N -triflylimino-λ 3 -bromane ( 12 ) revealed that the bromine(III) center is effectively stabilized by intramolecular R-Br-O hypervalent bonding. This strategy enables the synthesis of a variety of air-, moisture-, and benchtop-stable Br-hydroxy, -acetoxy, -alkynyl, -aryl, and bis[(trifluoromethyl)sulfonyl]methylide λ 3 -bromane derivatives.

Published
2021
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