Extension de la réaction de Todd aux 1-hydrido-1-organyloxybicyclo-phosphoranes porteurs d'une fonction amine secondaire

The extension of the Todd reaction to 1-hydrido-1-organyloxybicyclophosphoranes 2–5 bearing a secondary amine group leads to a cyclic bis(bicyclophosphoranes) 2d–5d as well as to a symmetric bicyclophosphoranes 6, 7, 8 in which the H—P atom has been substituted by the organyloxy group. These last compounds are a good synthons for the preparation of new bicyclophosphoranes containing macrocycles