7-二甲基-4H-苯并-[b]-吡喃相关论文
Michael Addition Reaction without Catalyst:The Synthesis of 2—Amino—5,6,7,8—tetrahydro—5—oxo—4—aryl—
Aseries of tetrahydrobenzo-[b]-pyran derivative was synthesized by the reaction of arylmethylene malononitrile or arylme......