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【结 构 式】

【分子编号】33506

【品名】ketene

【CA登记号】463-51-4

【 分 子 式 】C2H2O

【 分 子 量 】42.03728

【元素组成】C 57.14% H 4.8% O 38.06%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(V)

Trifluoromethylphenol (I) is converted into 2-hydroxy-4-trifluoromethylbenzoic acid (II) by treatment with potassium carbonate and carbon dioxide under pressure (Kolbe-Schmitt reaction). (II) is then converted with a suitable acetylating agent in the 2-acetoxy-4-trifluoromethylbenzoic acid (III).

1 Barra, E.F.; Marin, A.; 4-Trifluoromethylbenzoic acid derivatives as thromboembolic agents. DE 2641556; ES 459855; FR 2354335; GB 1588633; JP 52156831; US 4096252 .
2 Marin, A.; Francia, E.; Garcia Rafanell, J.; Triflusal. Drugs Fut 1978, 3, 3, 225.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 33504 3-(trifluoromethyl)phenol 98-17-9 C7H5F3O 详情 详情
(II) 33505 2-hydroxy-4-(trifluoromethyl)benzoic acid 328-90-5 C8H5F3O3 详情 详情
(IV) 19273 acetyl chloride 75-36-5 C2H3ClO 详情 详情
(V) 33506 ketene 463-51-4 C2H2O 详情 详情
Extended Information