Diels-Alder process

Chemistry of hydrocarbon compounds – Alicyclic compound synthesis – Polycyclic product

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526 75, 526133, 526166, 526281, 526282, 526308, 585502, C07C 250

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active

052604985

ABSTRACT:
An improved process for the production of 1:1 molar adducts of 4-vinylcyclohexene and cyclopentadiene, primarily 5-(3-cyclohexen-1-yl)-2-norbornene, comprises contacting 4-vinylcyclohexene and dicyclopentadiene at elevated temperature in a suitable reactor, separating the resulting mixture of adducts into light product comprising predominately the 1:1 molar adduct and a heavy product comprising higher adducts and cyclopentadiene oligomers, and recycling the bottoms product to the reactor.

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CA:82 170222j, T. Akima and H. Kawauchi [Hitachi Chemical Co., Ltd.].

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