专利号:US-6222073-B1 优先权日:1998-01-17 标题:Catalytic synthesis of N-alkylated anilines from olefins and anilines 发明人:HERWIG JUERGEN; BELLER MATTHIAS; BREINDL CLAUDIA; TRAUTHWEIN HARALD; EICHBERGER ELISABETH; EICHBERGER ANTON 权利人:AVENTIS RES & TECH GMBH & CO 摘要:Process for the preparation of an N-arylethylaniline of the formula (I)by reacting an aromatic olefin of the formula (II)with an aniline of the formula (III)in an inert solvent in the presence of at least one basic catalyst selected from the group consisting of alkali metal alcoholates and alkaline earth metal alcoholates or alkali metal amides and alkaline earth metal amides, where, in the formulae (I) to (III),Ar and Ar', independently of one another, are an aryl radical selected from the group consisting of the fused and nonfused C6-C22-aromatics and of the fused or nonfused C5-C22heteroaromatics which have at least one nitrogen, oxygen or sulfur atom in the ring;R1, R2 and R3, independently of one another, are a hydrogen atom, a C1-C8-alkyl radical or an aryl radical Ar; andn is the number 1 or 2.
专利号:DD-143774-A5 优先权日:1975-11-03 标 题:PROCESS FOR PREPARING INTERMEDIATE PRODUCTS FOR SYNTHESIS OF 1,9-DIHYDROXY-HEXAHYDRODIBENZOPYRANES
摘要:Kostikov, R. R.; Khlebnikov, A. F.; Sokolov, V. V., Science of Synthesis, (2010) 47, 780. 摘要:Fujihara, T., Science of Synthesis: Special Topics, (2022) 1, 386. 摘要:Rawat, V. K.; Mita, T., Science of Synthesis: Knowledge Updates, (2024) 3, 294.