1,4-Diaryl- and 1,4-diaryl-2-alkyl-3-butyn-1-ones can be rearranged catalytically by treatment with Pd(dba)2/PPh3 to give 2,5-substituted and 2,3,5-trisubstituted furans in 26-38% yields.
1,4-二芳基和 1,4-二芳基-2-烷基-3-丁炔-1-酮可通过 Pd(dba)2/PPh3 催化重排,得到 2,5 取代和 2,3,5 三取代的
呋喃,产率为 26-38%。