Synthesis of 2H-chromenes and 1,2-dihydroquinolines from aryl aldehydes, amines, and alkenylboron compounds

Add time:07/19/2019    Source:sciencedirect.com

The one-step reaction of salicylaldehydes with amines and alkenyl boronic acids or alkenyl trifluoroborates to form 2H-chromenes (2H-1-benzopyrans) has been investigated in more detail and new suitable conditions have been identified, including the use of tertiary amines and protic solvents including water. This process was applied to a concise synthesis of a tocopherol analog. The analogous condensation reaction between 2-sulfamidobenzaldehydes and alkenyl trifluoroborates provides an efficient synthesis of 1,2-dihydroquinoline derivatives.

We also recommend Trading Suppliers and Manufacturers of 2H-1-BENZOPYRAN, 7-METHOXY-3-NITRO-2-PHENYL- (cas 105849-85-2). Pls Click Website Link as below: cas 105849-85-2 suppliers

Prev:Stereochemical investigation in the 1,3-dipolar cycloadditions of 3-nitro-2-phenyl-2H-1-benzopyrans to diazoalkanes: Synthesis and antimicrobial activity of novel benzopyranopyrazole derivatives
Next:Acylation of methylfuran with Brønsted and Lewis acid zeolites)