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Propellanes—XXXVII : Further testing of thesis regarding control by secondary orbital overlap during certain diels-alder reactions

✍ Scribed by J. Kalo; D. Ginsburg; E. Vogel

Publisher: Elsevier Science
Year: 1977
Tongue: French
Weight: 491 KB
Volume: 33
Category: Article
ISSN: 0040-4020
DOI: 10.1016/0040-4020(77)80410-9

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## Abstract In contrast to the behavior of 4‐substituted‐1,2, 4‐triazoline‐3, 5‐diones which add to the __syn__‐face of the cyclohexadiene with respect to the hetero‐ring in propellanes of type **1**, dienophiles containing a C, C double bond instead of an N, N double bond add exclusively to the __