Add time:07/24/2019         Source:sciencedirect.com

HgSO4 catalyzed hydrative cyclization of 1,6-heptadiynes is present. This reaction proceeded smoothly under the mild condition for differently 4-sustituted 1,6-diynic substrates giving corresponding 3-methyl-2-cyclohexenones with high to excellent yield. The microwave assisted aldol condensation of cyclohexenones under the catalysis of BiCl3 afforded 3-styryl-cyclohexenones with high regio- and stereo-selectivity.

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