Triton-X-100, a polyethylene glycol 4-(tert-octyl)phenyl ether, has been found to be an active micellar organic catalyst for the one-pot selective synthesis of arylmethyl-H-phosphinic acids in up 65% yields by direct phosphinylation arylmethyl halides with red phosphorus KOH/H2O/toluene multiphase superbase system. The demonstrates good recyclability. As result, expeditious method chemoselectiv...