作者:Rebekka Anna Bohmann、Yuto Unoh、Masahiro Miura、Carsten Bolm
DOI:10.1002/chem.201600725
日期:2016.5.10
the regioselective synthesis of 1,2‐thiazines, starting from propargyl ketones and NH‐sulfoximines or NH‐sulfondiimines, has been developed. Under mild and operationally simple reaction conditions previously unprecedented 1,2‐thiazine 1‐imide and 1‐oxide derivatives are formed in good to excellent yields. The products represent heterocyclic building blocks, readily modifiable by a regioselective C−H
从炔丙基酮和N H-磺基亚砜或N H-磺基二亚胺开始,已经开发出了一个一锅迈克尔加成/环化/缩合反应序列,用于1,2-噻嗪的区域选择性合成。在温和且操作简单的反应条件下,以前形成的空前的1,2-噻嗪1-酰亚胺和1-氧化物衍生物具有良好的至极好的收率。该产品代表杂环结构单元,可通过区域选择性CH键功能化,经典的交叉偶联反应和脱保护作用轻松进行修饰。