54921-89-0Relevant articles and documents
Niobium Pentachloride Mediated (Hetero)aromatic Aldehyde Friedel-Crafts Hydroxyalkylation with Arenes: An Efficient Strategy to Synthesize Triarylmethanes
Baviera, Giovanni S.,Donate, Paulo M.,Matias, Alexandre A.,Previdi, Daniel,Rodrigues, Shirley M. M.
, p. 4498 - 4506 (2019/11/21)
Niobium pentachloride is an efficient and useful Lewis acid to conduct Friedel-Crafts hydroxyalkylation between arenes and (hetero)aromatic aldehydes, to generate triarylmethanes. This practical methodology offers several advantages, such as short reaction time, mild experimental conditions, and excellent yields.
Trifluoromethanesulfonic acid catalyzed Friedel-Crafts alkylations of 1,2,4-trimethoxybenzene with aldehydes or benzylic alcohols
Wilsdorf, Michael,Leichnitz, Daniel,Reissig, Hans-Ulrich
supporting information, p. 2494 - 2497 (2013/07/05)
Trifluoromethanesulfonic acid in acetonitrile was found to efficiently catalyze Friedel-Crafts alkylations of 1,2,4-trimethoxybenzene with a variety of simple or functionalized aldehydes to provide di- or triarylmethanes in high yields. The operationally
Efficient synthesis of triarylmethanes via bisarylation of aryl aldehydes with arenes catalyzed by silica gel-supported sodium hydrogen sulfate
Leng, Yixin,Chen, Fang,Zuo, Li,Duan, Wenhu
experimental part, p. 2370 - 2373 (2010/06/13)
An efficient synthesis of triarylmethanes has been developed via bisarylation of aryl aldehydes with arenes catalyzed by silica gel-supported sodium hydrogen sulfate in a solvent-free system. The new method features high yield, mild reaction conditions, a