A new performance of the reaction of PCl3/AlCl3 with anisoles - One-pot and multi-step syntheses of a new fused-ring system [1,2,3]benzoxadiphospholo[2,3-b][1,2,3]benzoxadiphosphole
G. Baccolini et al., A new performance of the reaction of PCl3/AlCl3 with anisoles - One-pot and multi-step syntheses of a new fused-ring system [1,2,3]benzoxadiphospholo[2,3-b][1,2,3]benzoxadiphosphole, EUR J ORG C, (12), 2001, pp. 2229-2233
Anisoles 4 react with AlCl3 and PCl3 to yield the new fused bicyclic system
derivatives 5 and 6 as major products in a one-pot procedure. An alternati
ve multi-step synthesis of this system is also reported in which bis(o-meth
oxyaryl)phosphane oxides 11 are treated with AlCl3 and PCl3; the diarylphos
phane oxides 11 are obtained by a new simple method.