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【结 构 式】

【分子编号】34006

【品名】1-(2-chlorophenyl)-1-ethanone

【CA登记号】2142-68-9

【 分 子 式 】C8H7ClO

【 分 子 量 】154.59568

【元素组成】C 62.15% H 4.56% Cl 22.93% O 10.35%

与该中间体有关的原料药合成路线共 2 条

合成路线1

该中间体在本合成路线中的序号:(I)

The oxidation of 2-chloroacetophenone (I) with SeO2 in dioxane-water gives 2-chlorophenylglyoxal (II), b.p. 87-90 C/1 mm, which is then reductocondensed with tert-butylamine (III) and NaSH4 in ethanol.

1 Kato, H.; Kurata, S.; Verfahren zur Herstellung con Derivaten des Chlorbenzylalkohols. BE 0788737; DE 2244737; ES 406646; FR 2154082; JP 48034848 .
2 Castaner, J.; Thorpe, P.; C 78. Drugs Fut 1976, 1, 5, 217.
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) 34006 1-(2-chlorophenyl)-1-ethanone 2142-68-9 C8H7ClO 详情 详情
(II) 34007 2-(2-chlorophenyl)-2-oxoacetaldehyde C8H5ClO2 详情 详情
(III) 17895 2-Amino-2-methylpropane; tert-butylamine; 2-methyl-2-propanamine 75-64-9 C4H11N 详情 详情

合成路线2

该中间体在本合成路线中的序号:(II)

The reaction of 2,4-dichlorophenol (I) with 2-chloroacetophenone (II) by means of a copper catalyst and sodium hydroxide gives 2-(2,4-dichlorophenoxy)acetophenone (III), which is treated with sulfur in refluxing morpholine yielding 2-(2,4-dichlorophenoxy)phenylthioacetomorpholide (IV). Finally, this compound is hydrolyzed with KOH in refluxing methanol.

1 Arrigoni-Martelli, E.; Castañer, J.; Fenclofenac. Drugs Fut 1977, 2, 10, 665.
2 Godfrey, K.E. (Reckitt & Colman Pharmaceuticals); Substituted 2-phenoxyphenylacetic acids. DE 2117826; FR 2092044; GB 1308327; US 3766263 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
10388 Morpholine 110-91-8 C4H9NO 详情 详情
(I) 40047 2,4-dichlorophenol 120-83-2 C6H4Cl2O 详情 详情
(II) 34006 1-(2-chlorophenyl)-1-ethanone 2142-68-9 C8H7ClO 详情 详情
(III) 40172 1-[2-(2,4-dichlorophenoxy)phenyl]-1-ethanone C14H10Cl2O2 详情 详情
(IV) 40173 2-[2-(2,4-dichlorophenoxy)phenyl]-1-(4-morpholinyl)-1-ethanethione C18H17Cl2NO2S 详情 详情
Extended Information