✦ LIBER ✦

The simultaneity of allene cycloadditions. The reaction of tetracyanoethyleneoxide with allene.

✍ Scribed by William R. Dolbier Jr.; Sheng Hong Dai

Book ID: 104222588
Publisher: Elsevier Science
Year: 1970
Tongue: French
Weight: 92 KB
Volume: 11
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)89397-1

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✦ Synopsis

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 likely. 394

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