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【结 构 式】

【分子编号】36171

【品名】2,3-dihydro-1,4-benzodioxine-2-carbonitrile

【CA登记号】

【 分 子 式 】C9H7NO2

【 分 子 量 】161.16012

【元素组成】C 67.08% H 4.38% N 8.69% O 19.86%

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:(III)

The cyclization of catechol (I) with 2-chloroacrylonitrile (II) by means of K2CO3 in acetone gives 2-cyanobenzo-1,4-dioxane (III), which is hydrolyzed with ethanol and HCl to the corresponding iminoether (IV) Finally, this compound is cyclized with ethylenediamine (V) in cool ethanol.

1 Myers, P.L.; Chapleo, C.B.; 2-[2-(1,4-Benzodioxanyl)]-2-imidazoline hydrochloride. Tetrahedron Lett 1981, 22, 48, 4839-42.
2 Chapleo, C.B.; Myers, P.L. (Reckitt & Colman Pharmaceuticals); Imidazoline deriv.. GB 2068376 .
3 Hillier, K.; Idazoxan hydrochloride. Drugs Fut 1983, 8, 9, 778.
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) 11599 o-Dihydroxybenzene; Catechol; Pyrocatechol 120-80-9 C6H6O2 详情 详情
(II) 12372 2-Chloroacrylonitrile 920-37-6 C3H2ClN 详情 详情
(III) 36171 2,3-dihydro-1,4-benzodioxine-2-carbonitrile C9H7NO2 详情 详情
(IV) 36172 ethyl 2,3-dihydro-1,4-benzodioxine-2-carboximidoate C11H13NO3 详情 详情
(V) 14754 ethylenediamine;1,2-Diaminoethane;ethane-1,2-diamine;1,2-Ethanediamine 107-15-3 C2H8N2 详情 详情
Extended Information