photoisomerization of 1-vinyl-7,7- dimethyl bicyclo [2.2.1] hepta-zone
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abstract
the acetone sensitized photolysis of the title compound gave 2-(2- oxopropy1)-9,9- dimethyl bicyclo [3.3.l]nona-3-one. a bridgehead cyclopropane intermediate was then suggested for the formation of the photoproduct
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PHOTOISOMERIZATION OF 1-VINYL-7,7- DIMETHYL BICYCLO [2.2.1] HEPTA-ZONE
The acetone sensitized photolysis of the title compound gave 2-(2- oxopropy1)-9,9- dimethyl bicyclo [3.3.l]nona-3-one. A bridgehead cyclopropane intermediate was then suggested for the formation of the photoproduct
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full textPhotoisomerization of 2,3-diphenylcyclopropane-1-carboxylic acid derivatives.
Contrary to what is known about cis-1,2-diphenylcyclopropane and its derivatives, we find that they have triplet energies of ca. 311 kJ mol(-1), do not undergo intersystem crossing upon direct excitation, undergo the less common adiabatic photoisomerization to the corresponding trans isomers, and show emission from excited 1,3-diradical intermediates.
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Journal title:
journal of sciences islamic republic of iranجلد ۱، شماره ۲، صفحات ۰-۰
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