An Improved Protocol for the Morita‐Baylis‐Hillman Reaction Allows Unprecedented Broad Synthetic Scope
作者:Nilton S. Camilo、Hugo Santos、Lucas A. Zeoly、Fábio S. Fernandes、Manoel T. Rodrigues、Thiago S. Silva、Samia R. Lima、José Cláudio Serafim、Aline S. B. de Oliveira、Arthur G. Carpanez、Giovanni W. Amarante、Fernando Coelho
DOI:10.1002/ejoc.202101448
日期:2022.3.7
By the combination of DABCO and aceticacid under solvent-free conditions, the Morita-Baylis-Hillman reaction rate of both activated and non-activated aldehydes increased significantly. The disclosed procedure is operationally simple and is compatible with a wide array of both nucleophilic and electrophilic reaction partners.
Synthesis of 4<i>H</i>-tetrazolo[1,5-<i>a</i>][1]benzazepines from the baylis-hillman adducts of 2-azidobenzaldehyde
作者:Chang Hoon Lee、Young Seok Song、Hyun In Cho、Je Woo Yang、Kee-Jung Lee
DOI:10.1002/jhet.5570400622
日期:2003.11
Novel heterocycles, 4H-tetrazolo[1,5-a][1]benzazepines 6 were prepared by the intramolecular 1,3-dipolar cycloaddition reaction of azidophenylcyanomethyl compounds 5. The latter were readily obtained from 2-azidobenzaldehyde through the Baylis-Hillman adducts 3 followed by acetylation to compounds 4 and nucleophilic substitution by cyanide to compounds 5.