Heterocyclensynthesen mit MF/Al2O3-Basensystemen: 2-Arylbenzofurane and 2,3-Diarylisochinolin-1(2H)-one
作者:D. Hellwinkel、K. Göke
DOI:10.1055/s-1995-4057
日期:1995.9
Synthesis of Heterocycles with MF/Al 2 O 3 Base-Systems: 2-Arylbenzofuranes and 2,3-Diarylisoquinolin-1(2H)-ones2-Benzyloxybenzaldehydes, -acetophenones and -benzophenones substituted in the benzyl part with electron-withdrawing groups, cyclize easily to 2-arylbenzofuranes by using a standardized KF- or CsF-Al2O3 base system. An efficient one-pot synthesis for 2,3-diarylisoquinolin-1(2H)-ones is possible by reacting a variety of arene carbaldehyde anils with phthalides under the same reaction conditions.
基于MF/Al2O3体系合成杂环:2-芳基苯并呋喃和2,3-二芳基异喹啉-1(2H)-酮。通过使用标准化的KF-或CsF-Al2O3碱体系,2-苄氧基苯甲醛、苯乙酮和二苯甲酮在苄位被吸电子基团取代的化合物可以容易地环化成2-芳基苯并呋喃。在相同的反应条件下,各种芳烃醛与酞内酯反应可以实现2,3-二芳基异喹啉-1(2H)-酮的高效一锅法合成。