Triethylamine → HCID 135914988, Verbindung

Reaktionsgleichung

[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[O:10][C:9]([C:11]3[CH:16]=[C:15]([Cl:17])[CH:14]=[CH:13][C:12]=3[OH:18])=[N:8][C:7](=O)[C:6]=2[CH:20]=1.C(N(CC)CC)C.Cl.[NH:29]([CH2:31][C:32]([O:34][CH2:35][CH3:36])=[O:33])[NH2:30]>C(O)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([OH:10])=[C:6]([C:7]2[N:8]=[C:9]([C:11]3[CH:16]=[C:15]([Cl:17])[CH:14]=[CH:13][C:12]=3[OH:18])[N:29]([CH2:31][C:32]([O:34][CH2:35][CH3:36])=[O:33])[N:30]=2)[CH:20]=1

Komponenten

Versuchsvorschrift

6.0 g of chloro-2-(5-chloro-2-hydroxyphenyl)benz[e][1,3]oxazin-4-one (Example 16), 3.0 ml of triethylamine and 3.3 g of ethyl hydrazinoacetate hydrochloride are boiled under reflux for 2 h in 60 ml of ethanol. On cooling, the product precipitates in crystalline form. It is filtered off and washed with ethanol. After drying, ethyl [3,5-bis(5-chloro-2-hydroxyphenyl)-[1,2,4]triazol-1-yl]acetate is obtained as colorless crystals of m.p. 195-200° C.