New Synthesis ofβ-Anilinochalcones by Regioselective Oxidation ofβ-Anilinodihydrochalcones Using Iodine–DMSO
摘要:
beta-Anilinodihydrochalcones readily undergo oxidation alpha to the carbonyl group region in the presence of a catalytic amount of iodine in dimethyl sulfoxide at 130 degrees C in good yield. Oxidation of allyloxy-substituted beta-anilinodihydrochalcones to beta-anilinochalcones is a preferred reaction over deallylation.
SnCl2-catalyzed three-component one-pot Mannich-type reaction: efficient synthesis of β-aminocarbonyl compounds
作者:Min Wang、Zhi-Guo Song、Xin Wan、Suang Zhao
DOI:10.1007/s00706-009-0163-1
日期:2009.10
AbstractSnCl2-catalyzed three-component one-pot Mannich reaction of acetophenone or p-chloroacetophenone with different aromaticaldehydes and aromatic amines in ethanol at ambient temperature gave the corresponding β-aminocarbonyl compounds in good to excellent yields. Four new compounds are reported for the first time. Graphical abstract
Wang, Min; Liang, Yan; Song, Zhiguo, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2010, vol. 49, # 12, p. 1653 - 1656
作者:Wang, Min、Liang, Yan、Song, Zhiguo
DOI:——
日期:——
SnCl<sub>4</sub>·5H<sub>2</sub>O-CATALYZED SYNTHESIS OF<i>β</i>-AMINO CARBONYL COMPOUNDS VIA A DIRECT MANNICH-TYPE REACTION
作者:Min Wang、Zhiguo Song、Yan Liang
DOI:10.1080/10826068.2010.489008
日期:2010.12.29
An efficient three-component, one-pot synthesis of beta-amino carbonyl compounds from aromatic ketones, aromatic aldehydes; and aromatic amines using tin tetrachloride at room temperature in ethanol is described. The advantages of the new method are good yields (62-96%), simple workup, and inexpensive catalyst.