New synthesis of 1,2-Bismethylenecyclobutane (cas 14296-80-1)s by [2+2] cycloaddition reaction of 1,1-diphenyl-4,4-bis(trifluoromethyl)-butatriene with electron-rich alkenes

Add time:07/20/2019    Source:sciencedirect.com

The title compound 1 undergoes thermal [π2S+π2S] cycloaddition reactions with 1,1-dimethoxyethylene or enamines to produce 1,2-bismethylenecyclobutanes of type 3.

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