Mechanochemical solid-state synthesis of 2-aminothiazoles, quinoxalines and benzoylbenzofurans from ketones by one-pot sequential acid- and base-mediated reactions
作者:Honnappa Nagarajaiah、Abhaya Kumar Mishra、Jarugu Narasimha Moorthy
DOI:10.1039/c6ob00351f
日期:——
ball-milling conditions – were set up for a sequential base-mediated condensation reaction with thiourea/thiosemicarbazides, o-phenylenediamine and salicylaldehyde to afford 2-aminothiazoles, 2-hydrazinylthiazoles, quinoxalines and benzoylbenzofurans, respectively, in respectable yields. The viability of one-pot sequential acid- and base-mediated reactions in the solid state under ball-milling conditions
α氯酮-通过用三氯异氰尿酸(TCCA)在存在酮的原子经济氯化得到的p被设置为与硫脲/氨基硫脲,顺序碱介导的缩合反应- -tsa球磨条件下ö -苯二胺和水杨醛分别以可观的收率得到2-氨基噻唑,2-肼基噻唑,喹喔啉和苯甲酰基苯并呋喃。因此证明了在球磨条件下一锅顺序酸和碱介导的固态反应的可行性。