Abstract:α‐Phenylcinnamic acid converts into polycyclic derivatives by interaction with high valent transition metal halides in chloroform at reflux temperature. Different products, featured by local structural differences depending on the nature of the metal halide system (i. e. WCl6, PCl5/NbF5 or PCl5/NbCl5), are easily isolable after treatment with water. In particular, WCl6 configures as an efficient multitasking agent, working as 1) chlorinator of the carboxylic acid function, 2) catalytic precursor for intra‐ and… Show more
The unusual decarbonylation of α-phenyl carboxylic acids with suitable substituents is a general reaction promoted at room temperature by homoleptic halides of high valent transition metals.
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