Hydrochloric Acid → (1,2,5-Thiadiazol-3-yl)glyoxylic acid
반응식
ON=[C:3]([C:9]1[CH:13]=[N:12][S:11][N:10]=1)[C:4]([O:6]CC)=[O:5].C=[O:15].Cl>O>[S:11]1[N:12]=[CH:13][C:9]([C:3](=[O:15])[C:4]([OH:6])=[O:5])=[N:10]1참가 물질
5
실험 절차
A mixture of ethyl 2-hydroxyimino-2-(1,2,5-thiadiazol-3-yl)acetate (a mixture of syn and anti isomers) (6.0 g.), 36% aqueous solution of formaldehyde (40 ml.), conc. hydrochloric acid (20 ml.) and water (40 ml.) was treated according to a similar manner to that of Example 6(a)(2) to give crystals of 2-(1,2,5-thiadiazol-3-yl)glyoxylic acid (1.6 g.), mp 130° to 133° C.
후처리
- additionwas treated
출처 및 근거
- ORD 기록
- ord-5df5a43fb5ab44769ef75426ce1b8308
- 출처 데이터셋
- uspto-grants-1985_10
- 특허 번호
- US04544751
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