rewrite the following sentenceBromofluorocarbene precursors like CFBr3 resulted in a lower yield of 3 while difluorocarbene precursor including TMSCF2Br failed to deliver 3
The use of CFBr3 as a bromofluorocarbene precursor led to a decreased production of 3, whereas the utilization of TMSCF2Br as a difluorocarbene precursor did not yield any 3.
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