反应详情

1.00 (4 27 mmol) of 7,8 dihydro-6,6-dimethyl-7,8-epoxy-6H-pyrano[2,3-f]benz-2,1,3-oxadiazole-3-oxide (compound [G]) and 6 ml of benzene were stirred at 60° C., while 0.80 ml (4.70 mmol) of triethyl phosphite was added thereto dropwise within 15 minutes. Next, the obtained mixture was stirred for three hours.

1. additionwas added