Synthese et proprietes chimiques de deux diazoalcanes α-thiophosphores. observation d'un couplage 4jpp |
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| Authors: | B Divisia |
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| Institution: | Laboratoire d''Electrochimie Organique et Analytique, ERA(CNRS) 675, Département de Recherche Fondamentale, Centre d''Etudes Nucléaires de Grenoble, France |
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| Abstract: | Transfer of diazo and/or azide groups to the methylene of phosphine sulfides 1 Ph2P(S) CH2R, leads to the diazoalkanes Ph2P(S)CN2R 2b and 2c and azides Ph2P(S)CHN3R 3a and 3c in good yields. Thermolysis and photolysis in various media are studied. The 1,3-dipolar addition of 2c on trans dibenzoyléthylène and ethylfumarate is followed by Ph2P(S) group migration. The corresponding carbenes give very complex reactions causing P-C bond breaking. New coupling constants 4JPP and JPC are observed. |
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