叔丁基乙烯基醚 、
(E)-3-(Dimethoxyphosphoryl)-N,N-diethyl-4-(4-nitrophenyl)-2-oxobut-3-enamide 20.0 ℃
、999.99 MPa
条件下,
反应 3.0h,
生成 cis-2-tert-Butoxy-6-(diethylcarbamoyl)-5-(dimethoxyphsophoryl)-3,4-dihydro-4-(4-nitrophenyl)-2H-pyran 、 trans-2-tert-Butoxy-6-(diethylcarbamoyl)-5-(dimethoxyphosphoryl)-3,4-dihydro-4-(4-nitrophenyl)-2H-pyran