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【结 构 式】

【分子编号】57682

【品名】4-methyl-1,3-benzenediamine; 3-amino-4-methylphenylamine

【CA登记号】

【 分 子 式 】C7H10N2

【 分 子 量 】122.16988

【元素组成】C 68.82% H 8.25% N 22.93%

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:(I)

Condensation of 2,4-diaminotoluene (I) with methyl 4-methoxyacetoacetate (II) produces quinolinone (III). Conversion of the 7-aminoquinolinone (III) into the 7-hydroxy analogue (IV) is achieved by diazotization, followed by hydrolysis in hot sulfuric acid. Alkylation of phenol (IV) with allyl bromide (V) gives allyl ether (VI). Subsequent methylation of (VI) by means of dimethyl sulfate leads to a mixture of the desired N-methyl quinoline (VII) along with minor amounts of the O-methyl isomer (VIII), which are separated by column chromatography. Claisen rearrangement of the allyl ether (VII) in refluxing N,N-dimethylaniline affords the 7-hydroxy-8-allyl quinolone (IX), which is further acetylated to (X) by means of acetic anhydride and sodium acetate. Bromination of the allyl group of (X) in HOAc yields the dibromo compound (XI).

1 Chilin, A.; et al.; Synthesis and biological evaluation of a new furo(2,3-h)quinolin-2(1H)-one. J Med Chem 2002, 45, 5, 1146.
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) 57682 4-methyl-1,3-benzenediamine; 3-amino-4-methylphenylamine C7H10N2 详情 详情
(II) 57683 ethyl 4-methoxy-3-oxobutanoate C7H12O4 详情 详情
(III) 57684 7-amino-4-(methoxymethyl)-6-methyl-2(1H)-quinolinone C12H14N2O2 详情 详情
(IV) 57685 7-hydroxy-4-(methoxymethyl)-6-methyl-2(1H)-quinolinone C12H13NO3 详情 详情
(V) 11463 3-Bromo-1-propene; 3-Bromopropene;allyl bromide 106-95-6 C3H5Br 详情 详情
(VI) 57686 7-(allyloxy)-4-(methoxymethyl)-6-methyl-2(1H)-quinolinone C15H17NO3 详情 详情
(VII) 57687 7-(allyloxy)-4-(methoxymethyl)-1,6-dimethyl-2(1H)-quinolinone C16H19NO3 详情 详情
(VIII) 57688 7-(allyloxy)-2-methoxy-4-(methoxymethyl)-6-methylquinoline; allyl 2-methoxy-4-(methoxymethyl)-6-methyl-7-quinolinyl ether C16H19NO3 详情 详情
(IX) 57689 8-allyl-7-hydroxy-4-(methoxymethyl)-1,6-dimethyl-2(1H)-quinolinone C16H19NO3 详情 详情
(X) 57690 8-allyl-4-(methoxymethyl)-1,6-dimethyl-2-oxo-1,2-dihydro-7-quinolinyl acetate C18H21NO4 详情 详情
(XI) 57691 8-(2,3-dibromopropyl)-4-(methoxymethyl)-1,6-dimethyl-2-oxo-1,2-dihydro-7-quinolinyl acetate C18H21Br2NO4 详情 详情
Extended Information