Microwave-assisted synthesis of new isoxazolyl triazinethiones and isoxazolyl oxadiazinethiones in dry media
作者:E. Rajanarendar、K. Ramu、D. Karunakar、P. Ramesh
DOI:10.1002/jhet.5570420437
日期:2005.5
azol-4-yl)-N'-aryl thioureas (2), paraformaldehyde and primary amines using montmorillonite K-10 in dry media under microwave irradiation leads to isoxazolyl triazinethiones (3) in high yield. Condensation of 2 with paraformaldehyde alone under similar conditions provide isoxazolyl oxadiazinethiones (4) in excellent yield.
使用蒙脱石K-10在干燥介质中微波辐照下N-(3-甲酰基-5-苯乙烯基-异恶唑-4-基)-N'-芳基硫脲(2),多聚甲醛和伯胺的三分子缩合反应会生成异恶唑基三嗪硫酮(3)高产。在相似的条件下,将2与单独的低聚甲醛缩合可提供优异的收率的异恶唑基恶二嗪硫酮(4)。