Transition-Metal-Free Synthesis of Tertiary Aminocyclopropanes
2016
A transition-metal-free methodology for the construction of pharmaceutically relevant tertiary aminocyclopropanes is reported. Hydrazonamides, safe and stable carbene precursors, undergo smooth cyclopropanation with vinyl arenes in the presence of a base. The reaction proceeds with stereoselectivity to favor the Z isomer and provides facile access to a variety of substitution patterns through variation of the coupling partners.
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