D. Houalla et al., NEW BICYCLOPHOSPHORANIC MACROCYCLES .2. M IXED MACROCYCLES FROM 3-OXO-1,5-PENTANEDIOLS, 3-AMINO-1,5-PENTANEDIOLS AND 3-THIO-1,5-PENTANEDIOLS, Phosphorus, sulfur and silicon and the related elements, 88(1-4), 1994, pp. 83-97
New bis (1-5), tris (6,7) and tetrakis (bicyclophosphoranes) containin
g macrocycles (8-10) have been obtained by a Todd reaction between bis
(hydridobicyclophosphoranes) and four 1,5-pentanediols HO-(CH2)(2)-Y-(
CH2)(2)-OH (Y = O, S, N-t.Bu, N-Ph).