Synthesis of 3-Trifluoromethyl-1,4-dihydropyridazines by the PTSA-Catalyzed Reaction of α,β-Unsaturated Aldehydes with (E)-1-Phenyl-2-(2,2,2-trifluoroethylidene)
作者:Yongming Wu、Haibo Xie、Jiangtao Zhu、Zixian Chen、Shan Li
DOI:10.1055/s-0031-1290608
日期:2012.4
A facile and efficient method for the synthesis 3-trifluoromethyl-1,4-dihydropyridazine from a variety of readily available α,β-unsaturated aldehyde and (E)-1-phenyl-2-(2,2,2-trifluoroethylidene)hydrazine was developed. The reaction proceeded under mild conditions and gave the expected 1,4-dihydropyridazine products in moderate to high yields.
开发了一种简便且高效的方法,利用多种易得的不饱和醛和(E)-1-苯基-2-(2,2,2-三氟亚乙基)肼合成3-三氟甲基-1,4-二氢吡啶嗪。该反应在温和条件下进行,并以中等至高产率得到预期的1,4-二氢吡啶嗪产物。