Benzocyclobutenes carrying a substituent in the four membered ring are obtained in high yield from 2-methyl benzaldehydes through a reaction sequence involving a pyrolytic 1,4-elimination of HCl in the crucial step.
在关键步骤中,通过涉及热解1,4-消除HCl的反应顺序,由
2-甲基苯甲醛以高收率获得在四元环中带有取代基的
苯环丁烯。