Regioselective Control of 1,2- Versus 1,4-Addition in Organocatalytic Reactions of o-Hydroxycinnamaldehydes with Organoboronic Acids

Autor:	Kwang‐Su Choi, Sung-Gon Kim
Rok vydání:	2010
Předmět:	Diethylamine chemistry.chemical_compound Addition reaction chemistry Organic Chemistry Organic chemistry Regioselectivity Trichloroacetic acid Catalysis
Zdroj:	Synthesis. 2010:3999-4006
ISSN:	1437-210X 0039-7881
Popis:	The regioselective 1,2-addition and 1,4-addition reactions of o-hydroxycinnamaldehydes with organoboronic acids in the presence of organocatalysts gave 2-substituted 2H-chromenes and 4-substituted chroman-2-ols, respectively. Diethylamine was used as the catalyst for the 1,4-addition reaction, whereas dibenzylamine and trichloroacetic acid were used as the catalyst and additive, respectively, in the 1,2-addition reaction.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f8f62599332ad4132f1d4014c0532e14 https://doi.org/10.1055/s-0030-1258268 Zobrazit plný text záznamu