文献类型：专利

英文题名：Preparing (1Z,3Z)-1,3-dibenzylidene-1,3-dihydroisobenzofuran compounds, comprises carrying out addition-elimination reaction of (Z)-1-benzylidene-1,3-dihydroisobenzofuran compounds with benzaldehyde compounds

作者：LI D;LIU P;SHANG X

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN104140409-A

申请日：2014-07-14

公开日：2014-11-12

语种：英文

收录：DERWENT

摘要：NOVELTY - Preparing (1Z,3Z)-1,3-dibenzylidene-1,3-dihydroisobenzofuran compounds (III), comprises carrying out addition-elimination reaction of (Z)-1-benzylidene-1,3-dihydroisobenzofuran compounds (I) with benzaldehyde compounds (II). USE - The method is useful for preparing (1Z,3Z)-1,3-dibenzylidene-1,3-dihydroisobenzofuran compounds (claimed). ADVANTAGE - The method: utilizes easily available raw materials; has high product yield, short reaction time, and simple post-process; and is suitable for producing fluorescent compounds. DETAILED DESCRIPTION - Preparing (1Z,3Z)-1,3-dibenzylidene-1,3-dihydroisobenzofuran compounds of formula (III), comprises carrying out addition-elimination reaction of (Z)-1-benzylidene-1,3-dihydroisobenzofuran compounds of formula (I) with benzaldehyde compounds of formula (II). R1, R2 = H, methyl, methoxy, hydroxymethyl, halo, cyano, trifluoromethyl, electron-donating substituent or electron-withdrawing substituent; and R3 = nitrogen atom-containing substituent i.e. piperidinyl, pyrrolidinyl, morpholino or N,N-dimethyl-type electron-donating group.