[CH2:1]([N:8]1[C:12]([C:13]([O:15]CC)=[O:14])=[N:11][N:10]=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[OH-].[K+:19]>C(O)C.O>[CH2:1]([N:8]1[C:12]([C:13]([O-:15])=[O:14])=[N:11][N:10]=[N:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1.[K+:19]To a solution of 1-benzyl-5-carboethoxy tetrazole prepared in Example 1, in warm absolute ethanol is added a stoichiometric excess of KOH in water to precipitate crystalline 1-benzyl-1H-tetrazole-5-carboxylic acid potassium salt.
読み込み中…