Bulletin of the Chemical Society of Japan p. 3527 - 3528 (1983)
Update date:2022-09-26
Topics:
Ito, Nobuyuki
Nishino, Hiroshi
Kurosawa, Kazu
The reaction of 1,1-diphenylethene with malonic acid in the presence of manganese(III) acetate gave 3,3,8,8-tetraphenyl-2,7-dioxaspiro<4.4>nonane-1,6-dione and 4,4-diphenyl-2-(2,2-diphenylethenyl)-4-butanolide.Similar reactions with 1,1-bis(4-methoxyphenyl)ethene, methylenecyclohexane, 2-phenylpropene, 1-octene, and cyclohexene yielded the corresponding 2,7-dioxaspiro<4.4>nonane-1,6-diones.
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