Abstract
An efficient method for the synthesis of perfluoroalkyl allenyl ketones via the 1,2-addition―elimination reaction of perfluoroalkyl Grignard reagents with allenoates has been established. No further reaction was observed between these perfluoroalkyl ketones and R f MgX. Under the catalysis of PdCl 2 or AuCl 3 , perfluoroalkyl 1,2-allenyl ketones can be transformed to 2-perfluoroalkyl-substituted furans; they may also undergo 1,2-addition with organolithiums to afford tertiary 1,2-allenols containing a perfluoroalkyl group.
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