Novel Approach for the Synthesis of 2, 5-disubstituted 1, 3, 4-thiadiazoles
from Benzothiohydrazides and Ethylbenzimidate
作者:Shobha S、Kemparajegowda、Swamy Savvemala Girimanchanaika、Hassan A. Swarup、Kempegowda Mantelingu
DOI:10.2174/1570178620666230602085830
日期:2023.9.7
In the current study, a simple and reliable technique for the synthesis of 2,5-disubstituted 1,3,4-thiadiazoles from ethylbenzimidate and benzothiohydrazides were devised. This protocol goes via a base-mediated nucleophilic addition elimination process, followed by intramolecular rearrangement. Our method utilizes commonly accessible and non-toxic substrates and a simple workup procedure to produce
在目前的研究中,设计了一种简单可靠的技术,用于从苯甲亚胺酸乙酯和苯并硫代酰肼合成2,5-二取代1,3,4-噻二唑。该方案经过碱基介导的亲核加成消除过程,然后进行分子内重排。我们的方法利用常用且无毒的底物和简单的后处理程序,以高收率(70-91%)生产具有多种取代基的 2,5-二苯基 1,3,4-噻二唑衍生物。我们提出了一种简单的合成 1, 3, 4-噻二唑的方法,使用苯甲亚胺乙酯和苯并硫代酰肼,在 Et3N 存在下,在 DMSO 溶剂中作为经济实惠且易于获得的起始材料,在环境条件下生成衍生物。