New Methods for the Synthesis of 2-Aminothiazolones
摘要:
[GRAPHICS]Two new methods for the synthesis of 2-aminothiazolones from 2-(4-methoxybenzylthio)acetic acids are described. A single reagent and simple experimental conditions are used in the key tandem deprotection-cyclization process. In the first approach 2-aminothiazolones are directly accessed via cyclization of the corresponding N-acylisothioureas. The second complementary approach provides access to a variety of 2-thiomethylthiazoiones via cyclization of N-acyldithioimidates. The product 2-thiomethylthiazol ones are then efficiently converted to 2-aminothiazolones via amine displacement.
Wheeler, American Chemical Journal, 1901, vol. 26, p. 353
作者:Wheeler
DOI:——
日期:——
Wheeler; Johnson, Journal of the American Chemical Society, 1902, vol. 24, p. 690
作者:Wheeler、Johnson
DOI:——
日期:——
Reeve's synthesis of 2-imino-4-thiazolidinone from alkyl (aryl) trichloromethylcarbinol revisited, a three-component process from aldehyde, chloroform and thiourea
作者:Jérôme Blanchet、Jieping Zhu
DOI:10.1016/j.tetlet.2004.04.055
日期:2004.5
An efficient synthesis of 2-imino-4-thiazolidinones from readily accessible alkyl (aryl) trichloromethylcarbinols and thioureas under mild conditions is reported. A one-pot three-component synthesis of the title compounds from aldehyde, chloroform and thiourea is also developed for the first time. (C) 2004 Elsevier Ltd. All rights reserved.
Pteridines. XI. The Structure of Wieland's “Bis-alloxazine”<sup>1</sup>
作者:E. C. Taylor、C. K. Cain、Harvey M. Loux
DOI:10.1021/ja01636a041
日期:1954.4
REERE W.; COLEY W. R., CAN. J. CHEM., 1979, 57, NO 4, 444-449