Synthesis of N-haloacyl and N-hetarylthioacyl derivatives of 2-amino-5-aryl-6H-1,3,4-thiadiazine
作者:L. B. Kulikova、G. I. Ezhova、N. E. Kravchenko、O. V. Dorofeeva、A. S. Kulikov、A. G. Zavozin
DOI:10.1007/s11172-007-0255-1
日期:2007.8
Conditions for N-acylation of 2-amino-5-aryl-6H-1,3,4-thiadiazines with trifluoroacetic anhydride and halogen-substituted carboxylic acid halides with retention of the initial heterocyclic system were found. 5-Aryl-2-haloacylamino-6H-1,3,4-thiadiazines were obtained in preparative yields. Their reactions with hetarenethiols afforded N-hetarylthioacyl derivatives.
发现了在保留初始杂环系统的条件下,用三氟乙酸酐和卤素取代的羧酸酐对2-氨基-5-芳基-6H-1,3,4-噻二嗪进行N-酰化的条件。在制备产量中获得了5-芳基-2-卤代酰氨基-6H-1,3,4-噻二嗪。它们与杂环硫醇反应得到了N-杂芳硫代酰基衍生物。