(2-(3-methylenehept-1-ynyl)phenyl)diphenylsilanol 、
9H-fluoren-9-yl glyoxylate 在
[(IPr)Au(NCMe)]SbF
6 、 C
71H
85F
3NO
3PS 、 sodium sulfate 作用下,
以
甲苯 为溶剂,
反应 144.0h,
生成
(1S,4R)-9H-fluoren-9-yl 4,6,6-triphenyl-1,3,4,6-tetrahydrobenzo[c]pyrano[3,4-e][1,2]oxasiline-1-carboxylate 、 (1R,4S)-9H-fluoren-9-yl 4,6,6-triphenyl-1,3,4,6-tetrahydrobenzo[c]pyrano[3,4-e][1,2]oxasiline-1-carboxylate 、 (1SR,4RS)-9H-fluoren-9-yl 4,6,6-triphenyl-1,3,4,6-tetrahydrobenzo[c]pyrano[3,4-e][1,2]oxasiline-1-carboxylate