Cationic ring opening of functionalized diphosphiranes
M Gouygou, C Tachon, G Etemad-Moghadam…
Index: Gouygou, M.; Tachon, C.; Etemad-Moghadam, G.; Koenig, M. Tetrahedron Letters, 1989 , vol. 30, # 52 p. 7411 - 7414
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Citation Number: 10
Abstract
Abstract The functionalized diphosphiranes 1 a–c, in presence of Lewis acid, undergo two kinds of reaction: the ring opening leading to the phosphenium-phosphonium ion 2a–c obtained according to an electrocyclic reaction and the fragmentation giving phosphaalkene 3a–c and phosphonium ion 4. The deprotonation reaction of 2a–c in hexane leads to phosphino-phosphaalkenes 6a–c.
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