(chlorocarbonyl)-2,4,6-trimethylphenyl ketene 、
(3,3-dimethyl-4-(4-(trifluoromethyl)phenylthio)but-1-en-2-yloxy)trimethylsilane 在
crude product 作用下,
以
邻二甲苯 为溶剂,
反应 16.0h,
以to afford 4-hydroxy-3-mesityl-6-(2-methyl-1-(4-(trifluoromethyl)phenylthio)propan-2-yl)-2H-pyran-2-one (1-19) (600 mg, 18% over all 2 steps) as light brown solid的产率得到4-hydroxy-3-mesityl-6-(2-methyl-1-(4-(trifluoromethyl)phenylthio)propan-2-yl)-2H-pyran-2-one