Synthesis of Aryl‐Manganese(III) Fluoride Complexes via α‐Fluorine Elimination from CF 3 and Difluorocarbene Generation

We report the synthesis of cyclometalated monoaryl Mn III fluoro complexes using bis(trifluoromethyl)zinc reagent, Zn(CF 3 ) 2 (DMPU) 2 , under mild conditions via a reaction pathway that involves initial transmetalation followed by α‐fluorine elimination. The formation of difluorocarbene in these r...

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Bibliographic Details
Published in:European journal of inorganic chemistry 2023-11, Vol.26 (32)
Main Authors: Dinh, Hoan Minh, He, Yu‐Tao, Fayzullin, Robert R., Vasylevskyi, Serhii, Khaskin, Eugene, Khusnutdinova, Julia R.
Format: Article
Language:English
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Summary:We report the synthesis of cyclometalated monoaryl Mn III fluoro complexes using bis(trifluoromethyl)zinc reagent, Zn(CF 3 ) 2 (DMPU) 2 , under mild conditions via a reaction pathway that involves initial transmetalation followed by α‐fluorine elimination. The formation of difluorocarbene in these reactions was detected by trapping experiments. Such facile difluorocarbene generation from Mn III results in moderate enhancement of difluoropropanation and difluoropropenation of alkenes and alkynes using Zn(CF 3 ) 2 (DMPU) 2 at lower temperature (20–60 °C) and short reaction time, suggesting potential application of manganese(III) perfluoroalkyl complexes as reactive species for carbene transfer reactivity.
ISSN:1434-1948
1099-0682
DOI:10.1002/ejic.202300460