Process for the production of substituted vinylbenzenes

Details Process for the production of substituted vinylbenzenes Process for the production of substituted vinylbenzenes

1992-10-21

1993-12-28

Chan, Nicky

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

568766, 560144, 549365, C07C 69017, C07C 3330

Patent

active

052741761

ABSTRACT:
A process for the production of substituted vinylbenzenes of the general formula: ##STR1## wherein R is a lower alkyl group having 1 to 4 C atoms, R.sub.1 is hydrogen or an acetyl group and R.sub.2 is hydrogen, a lower alkyl group having 1 to 4 C atoms or a benzyl group. A trialkylhydroquinone is cyclized with an aldehyde to an acetal and the latter is pyrolized to the endproduct. The substituted vinylbenzenes are valuable intermediate products in the synthesis of antioxidants.

REFERENCES:
patent: 5080886 (1992-01-01), Mickle et al.
Chem. Berichte, vol. 92, (1959), pp. 2958 to 2961.

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