Oxidative Cyclisation Based One-Pot Synthesis of 3-Substituted[1,2,4]triazolo[4,3-b]pyridazines Using Me<sub>4</sub>NBr/Oxone
作者:Jayaraman Sembian Ruso、Rajendiran Nagappan、Rajendran Senthil Kumaran
DOI:10.5012/jkcs.2013.57.5.606
日期:2013.10.20
A facile one-pot syhthesis of 3-substituted triazolopyridazine and thieno-triazolopyridazine derivatives is described. This protocol involves the preparation of heteroaryl hydrazone from the aldehyde and pyridazinohydrazine deriva- tive followed by subjecting the intermediate directly to oxidative cyclization to assemble the desired 1,2,4-triazloe moiety by employing the mixture of Me4NBr and oxone
描述了一种容易的一锅合成的3-取代的三唑并哒嗪和噻吩并三唑并哒嗪衍生物。该方案涉及从醛和哒嗪肼衍生物制备杂芳基hydr,然后通过使用Me4NBr和oxone的混合物直接对中间体进行氧化环化,以组装所需的1,2,4-三唑部分。这种条件是有效的,并且能够耐受广泛的官能团。