Solid-phase synthesis of 4-triphenylphosphoranylidene-4,5-dihydropyrazol-5-ones, 4-aminocarbonyl-pyrroles, 4-methoxy-1H-pyrazol-5(2H)-ones and 2-thiazolin-4-ones from polymer-bound 1,2-diaza-1,3-butadienes

The solid-phase synthesis of 4-triphenylphosphoranylidene-4,5-dihydropyrazol-4-aminocarbonyl-pyrroles, 4-methoxy1H-pyrazol-5(2H)-ones and 2-thiazolin-4-ones using polymer-bound 1,2-diaza-1,3-butadienes is reported. (C) 2001 Elsevier Science Ltd. All rights reserved.