Difluoromethyl-substituted cyclopropanes still remain one of the most challenging class of substrates. Despite significant progress in modern chemistry, an atom-economic and concise synthesis has not been described to date. Herein, we describe the first method for their catalytic, one-step synthesis using difluoromethyl diazomethane and a rhodium(II) catalyst.
K. J. Hock, L. Mertens and R. M. Koenigs, Chem. Commun., 2016, 52, 13783 DOI: 10.1039/C6CC07745E
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