Addition of fluorenylidene to 1, 2-dichloroethylenes. Effects of additives and the question of spin-state equilibrium
PP Gaspar, CT Lin, BLW Dunbar…
Index: Gaspar,P.P.; Lin,C.T.; Dunbar,B.L. Journal of the American Chemical Society, 1984 , vol. 106, p. 2128
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Citation Number: 10
Abstract
Abstract: The photolysis of diazofluorene in cis-and trans-1, 2-dichloroethylene has been studied. While cyclopropanation of the trans isomer is> 92% stereospecific, the stereoselectivity of addition to the cis isomer is less than 86%. In the presence of styrene or butadiene the degree of stereoselectivity increases, and both the absolute and relative yields of an adduct formed via rearrangement of a diradical intermediate, 9-(2, 2- ...
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