Sodium Hydroxide → 1,4-Bis(m-carboxyphenylsulfonyl)-2,5-dimethylpiperazine

HRID 437732

반응식

HRID 437732 반응식
[CH3:1][C@H:2]1[CH2:7][NH:6][C@H:5]([CH3:8])[CH2:4][NH:3]1.Cl[S:10]([C:13]1[CH:14]=[C:15]([CH:19]=[CH:20][CH:21]=1)[C:16]([OH:18])=[O:17])(=[O:12])=[O:11].[OH-:22].[Na+]>O>[C:16]([C:15]1[CH:14]=[C:13]([S:10]([N:3]2[CH2:4][CH:5]([CH3:8])[N:6]([S:10]([C:13]3[CH:21]=[CH:20][CH:19]=[C:15]([C:16]([OH:18])=[O:17])[CH:14]=3)(=[O:11])=[O:22])[CH2:7][CH:2]2[CH3:1])(=[O:12])=[O:11])[CH:21]=[CH:20][CH:19]=1)([OH:18])=[O:17]

참가 물질

5

반응물 3

HCID 14798Sodium HydroxideHCID 77641Benzoic acid, 3-(chlorosulfonyl)-HCID 2206722,5-Dimethylpiperazine, trans-

생성물 1

HCID 214268161,4-Bis(m-carboxyphenylsulfonyl)-2,5-dimethylpiperazine

시약·촉매·용매 1

HCID 962Water용매

실험 절차

Binder 15 was prepared as follows: Trans-2,5-dimethylpiperazine in water at 50° C. was treated with slightly more than two molar equivalents of m-chlorosulfonylbenzoic acid and five molar equivalents of aqueous sodium hydroxide. Acidification gave 1,4-bis(m-carboxyphenylsulfonyl)-2,5-dimethylpiperazine which was recrystallized from aqueous ethanol. The dimethyl ester was made by boiling the acid for 24 hours in methanol to which some hydrogen chloride has been added. Recrystallization from 2:1 dioxane: water gave a product which melted at 223°-227° C. Anal. Calc'd for C22H26N2O8S2 : C, 51.7; H, 5.1; N, 5.5. Found: C, 51.6; H, 5.4; N, 5.7. The polymer was then made from this ester and ethylene glycol as described for Binder 6.

후처리

  1. customBinder 15 was prepared

출처 및 근거

ORD 기록
ord-a7ecdcd3e92647caa616e5f9ba1ee681
출처 데이터셋
uspto-grants-1977_06
특허 번호
US04032344

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