cation complex (E)-[(IPr)AuC(H)C(H)C(4-C6H4OMe)2]+ OTf− with sulfoxides at −95 °C formed the corresponding gold allyloxysulfonium complexes [(IPr)AuC(H)(OSR2)C(H)C(4-C6H4OMe)2]+ OTf− [R = Me, –(CH2)4–, Ar] in ≥95 ± 5% NMR yield. Allyloxysulfonium gold complexes underwent elimination at or below room temperature to form 3,3-bis(4-methoxyphenyl)acrylaldehyde in ≥67% yield.
在-95°C下用亚砜处理
金乙烯基卡宾/烯丙基阳离子络合物(E)-[((IPr)AuC(H)C(H)C(4-C 6 H 4 OMe)2 ] + OTf- 。相应
金allyloxysulfonium配合物[(IPR)AUC(H)(OSR 2)C(H)C(4-C 6 H ^ 4 OME)2 ] +光学传递函数- [R = Me中, - (CH 2)4 -中,Ar] ≥95±5%NMR收率。烯丙氧基ulf
金络合物在室温或低于室温下进行消除反应,形成3,3-双(4-
甲氧基苯基)
丙烯醛,产率≥67%。