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PROCESS FOR THE PREPARATION OF STILBENE DERIVATIVES
申请公布号：CA2050351(A1)
申请号：CA19902050351
申请日期：1990.02.26
申请公布日期：1990.09.02
发明人：BOWERS, JOSEPH S., JR.;MAYBERRY, GERALD L.
分类号：C07D263/62;C07D263/64;(IPC1-7):C07D263/64;C07D263/57
主分类号：C07D263/62
摘要：2050351 9010001 PCTABS00002 Disclosed is a process for the preparation of stilbene compounds such as bis(2-benzoxazolyl) stilbenes by reacting a stilbenedicarboxylate such as dimethyl-4,4'-stilbenedicarboxylate with an o-aminophenol in an organic solvent such as chloronaphthalene in the presence of a catalytic amount of a tin or titanium compound. The reaction is typically carried out at a temperature of about 200-250·C and a preferred catalyst is either dibutyl tin oxide or titanium tetra-alkoxide.