D. Houalla et al., EXTENSION OF THE TODD REACTION TO 1-HYDRI DO-1-ORGANYLOXYBICYCLOPHOSPHORANES BEARING A SECONDARY AMINE FUNCTION, Phosphorus, sulfur and silicon and the related elements, 81(1-4), 1993, pp. 1-15
The extension of the Todd reaction to 1-hydrido-1-organyloxybicyclopho
sphoranes 2-5 bearing a secondary amine group leads to a cyclic bis(bi
cyclophosphoranes) 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.