Triphenylphosphine-Catalyzed Synthesis of Stable, Functionalized 2H-Oxetes
摘要:
Triphenylphosphine underwent Michael addition to dialkyl acetylenedicarboxylate and subsequently to the carbonyl group of alpha-haloketones. Then, these compounds were cyclized to produce the unstable 1,3-diionicphosphorus compound, which spontaneously lost triphenyl phosphine, and was converted to the functionalized oxetes derivatives.