학술논문
Base‐Mediated Synthesis of 1,3‐Diazaphenothiazines from 2‐Methylbenzothiazoliums, Aryl Aldehydes and Amidines.
Document Type
Article
Author
Source
Subject
*AMIDINES
*ALDEHYDES
*ORGANIC synthesis
*RING formation (Chemistry)
*SALTS
*OXIDIZING agents
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Language
ISSN
1615-4150
Abstract
In this study, we developed a process for the [2+1+3] cyclization of 2‐methylbenzothiazole salts, aldehydes and amidine hydrochlorides, which allows rapid synthesis of 1,3‐diazaphenothiazines with moderate to good yields. The use of ethanol as solvent, oxygen as the terminal oxidant, mild reaction conditions, good functionality tolerance show the promising application in organic synthesis. [ABSTRACT FROM AUTHOR]