P-Dodecylbenzenesulfonic acid (DBSA), a Brønsted acid-surfactant catalyst for Biginelli reaction in water and under solvent free conditions
作者:Mohammad Ali Bigdeli、Ghazaleh Gholami、Enayatollah Sheikhhosseini
DOI:10.1016/j.cclet.2010.12.030
日期:2011.8
We report herein the use of p-dodecylbenzenesulfonic acid (DBSA) as a catalyst for a one-pot Biginelli reaction to afford 3,4-dihydropyrimidinone derivatives in good to excellent yields. This reaction proceeds efficiently in water and under solvent free conditions. Comparisons of results indicate that although the yields are high and comparable for both methods, the reaction times are considerably shorter under solvent free conditions. (C) 2010 Mohammad Ali Bigdeli. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.