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ChemicalBook CAS DataBase List 2-CHLORO-N-HYDROXY-BENZAMIDINE
56935-60-5

2-CHLORO-N-HYDROXY-BENZAMIDINE synthesis

4synthesis methods
-

Yield:56935-60-5 85%

Reaction Conditions:

with hydroxylamine hydrochloride;triethylamine in methanol at 20;Reflux;

Steps:

8 5.1.1. General procedure for the synthesis of N'-hydroxybenzimidamides 2a-2k

General procedure: A solution of the appropriate cyanophenyl 1a-1k (0.1 mol), hydroxylamine hydrochloride (0.2 mol), and TEA (0.2 mol) in methanol was left under stirring at room temperature for 1 h, then heated under reflux until the disappearance of the starting materials (TLC analysis). After cooling, the solvent was evaporated to dryness under reduced pressure to give the crude, which was dissolved in ethyl acetate (400 mL) and washed with brine (3 100 mL) and dried with Na2SO4. The ethyl acetate was evaporated under reduced pressure to yield the compounds 2a-2k.

References:

Cai, Jin;Wei, Hongtao;Hong, Kwon Ho;Wu, Xiaoqing;Zong, Xi;Cao, Meng;Wang, Peng;Li, Lushen;Sun, Chunlong;Chen, Bo;Zhou, Gaoxing;Chen, Junqing;Ji, Min [Bioorganic and Medicinal Chemistry,2015,vol. 23,# 13,art. no. 12240,p. 3457 - 3471]

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