A facile method for the synthesis of pyridazino[4,5-b][1,4]thiazine-diones via Smiles rearrangement
作者:Yongmei Zhao、Yongcheng Bai、Qihui Zhang、Zhi Chen、Qiaoling Dai、Chen Ma
DOI:10.1016/j.tetlet.2013.04.026
日期:2013.6
An efficient one-pot tandem method for the synthesis of pyridazino[4,5-b][1,4]thiazine-diones via Smiles rearrangement was developed. A number of ideal products were obtained with high yields without any byproducts. More specifically, this transition metal-free process is an environmentally friendly, economical, and efficient method for preparation of mixture-based heterocyclic libraries.
开发了一种有效的一锅串联方法,通过Smiles重排合成哒嗪并[4,5- b ] [1,4]噻嗪二酮。以高收率获得了许多理想的产物,而没有任何副产物。更具体地,这种无过渡金属的方法是用于制备基于混合物的杂环文库的环境友好,经济且有效的方法。