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【结 构 式】

【分子编号】65363

【品名】 

【CA登记号】 

【 分 子 式 】(C6H7LiO2S)n

【 分 子 量 】164.13412

【元素组成】C 43.91% H 4.3% Li 4.23% O 19.5% S 19.54% N 8.53%

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:(IV)

Polymerization of p-bromostyrene (I) in refluxing benzene in the presence of benzoyl peroxide affords poly(p-bromostyrene) (II) (1), which undergoes metalation to the polystyryl lithium (III) by treatment with butyl lithium in THF or benzene (1, 2). Exposure of (III) to sulfur dioxide atmosphere generates an intermediate polysulfinic acid (IV), which spontaneously oxidizes to the sulfonic acid tolevamer (3). Tolevamer is reported to dissolve in basic solutions to form the corresponding salts (3). Scheme 1.

1 Trefouel, M.J. Sur une préparation de polyparabutylstyrène. Compt Rend 1959, 248: 800-2.
2 Trefouel, M.J. Sur la conversion partielle du polyparabromostyrène en acide polystyrèneparacarboxylique. Compt Rend 1960, 250: 2209-10.
3 Trefouel, M.J. Sur une préparation d’acide polystyrèneparasulfonique. Compt Rend 1960, 250: 3839-40.
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) 49237 4-Bromostyrene; p-Bromostyrene 2039-82-9 C8H7Br 详情 详情
(II) 65361 Poly(p-bromostyrene)   (C6H7Br)n 详情 详情
(III) 65362 Polystyryl lithium   (C6H7Li)n 详情 详情
(IV) 65363     (C6H7LiO2S)n 详情 详情
Extended Information