Enforced Electronic‐Donor‐Acceptor Complex Formation in Water for Photochemical Cross‐Coupling
作者:Ya‐Ming Tian、Evamaria Hofmann、Wagner Silva、Xiang Pu、Didier Touraud、Ruth M. Gschwind、Werner Kunz、Burkhard König
DOI:10.1002/anie.202218775
日期:——
The sugar alcohol meglumine can solubilize organic compounds in water to synthetically useful levels, allowing the formation of enforced electron donor acceptor (EDA) complexes in water. These EDA complexes offer a new activation for light driven C−C and C−S cross-coupling chemistry without sensitizers.
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.