COMPORTEMENT COMPARE DE L'EPICHLORHYDRINE,DE L'EPIBROMHYDRINE ET DE LEURS HOMOLOGUES VIS A VIS DU METHYLENETRIPHENYLPHOSPHORANE |
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| Authors: | H. Daniel A. Turcant M. Le Corre |
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| Affiliation: | Laboratoire de Synthèse Organique , Université de Rennes I, U.A. CNRS n° 415 , Avenue du Général Leclerc, 35042, Rennes Cedex, France |
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| Abstract: | Abstract Condensation of methylenetriphenylphosphorane with epihalohydrines (X = Cl or Br) leads to 2,2-dihydro-2,2,2,-triphenyl-3,4-methano-1,2-oxaphospholane. The first step of this reaction depends on the nature of the halogene: a) attack on the epoxide group with X = Cl; b) attack on the halogenated function when X = Br. With 1-halogeno 2,3-epoxy butanes the reaction occurs according to b) and gives 2,2-dihydro-2,2,2-triphenyl-3,4-methano-5-methyl-1,2-oxaphospholane. |
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