The simultaneity of allene cycloaddition
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William R. Dolbier Jr.; Sheng Hong Dai
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Article
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1970
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Elsevier Science
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French
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In our.earlier communications dealing with the simultaneity of (2+2) and (2+4) cycloadditions of allene, it has been concluded that intramolecular isotope effects with values kH/kD > 1.00 derive from a non-concerted, probable diradical process, and that when kH/kD < 1.00 a concerted mechanism is lik