Helvetica Chimica Acta

Photoisomerisierung von o??Di??isobutenylbenzol

L Ulrich, HJ Hansen, H Schmid

Index: Ulrich,L. et al. Helvetica Chimica Acta, 1970 , vol. 53, p. 1323 - 1330

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Citation Number: 17

Abstract

Abstract o-Di-isobutenyl-benzene (4) on irradiation in hexane with a low-pressure mercury lamp gives 4 photoproducts in an overall yield of 24%. Three of these products were identified as 4, 4, 6, 6-tetramethyl-benzobicyclo [3.1. 0] hex-2-ene (5, main product, 14%), 1.1-dimethyl-2-isopropenyl-indane (6, 8%) and 1-isopropenyl-2, 2-dimethyl-indane (10, 2%). 6 is also formed by irradiation of 5 in hexane.

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