Scheme 33.
Photoinduced difluoroalkylation of N‐phenylcinnamamides (138, 140) for the regioselective synthesis of difluoroalkylated quinoline‐2‐ones (6‐endo cyclization) (139) and 1‐azaspiro[4.5]decanes (5‐exo cyclization/dearomatization) (141).
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