Hydrochloric Acid → 5-Isopropyl-pyridine-2-sulfonic acid [4-(3-nitro-phenyl)-thiazol-2-yl]-amide

HRID 619035

반응식

HRID 619035 반응식
Cl.[N+:2]([C:5]1[CH:6]=[C:7]([C:11]2[N:12]=[C:13]([NH2:16])[S:14][CH:15]=2)[CH:8]=[CH:9][CH:10]=1)([O-:4])=[O:3].[CH:17]([C:20]1[CH:21]=[CH:22][C:23]([S:26](Cl)(=[O:28])=[O:27])=[N:24][CH:25]=1)([CH3:19])[CH3:18].Cl>N1C=CC=CC=1>[N+:2]([C:5]1[CH:6]=[C:7]([C:11]2[N:12]=[C:13]([NH:16][S:26]([C:23]3[CH:22]=[CH:21][C:20]([CH:17]([CH3:19])[CH3:18])=[CH:25][N:24]=3)(=[O:27])=[O:28])[S:14][CH:15]=2)[CH:8]=[CH:9][CH:10]=1)([O-:4])=[O:3]

참가 물질

5

반응물 3

HCID 313Hydrochloric AcidHCID 218455864-(3-Nitrophenyl)thiazol-2-amine hydrochlorideHCID 222819185-Isopropylpyridine-2-sulfonyl chloride

생성물 1

HCID 867537545-Isopropyl-pyridine-2-sulfonic acid [4-(3-nitro-phenyl)-thiazol-2-yl]-amide수율 39.5%

시약·촉매·용매 1

HCID 1049Pyridine용매

실험 절차

A mixture of 0.5 g of 4-(3-nitro-phenyl)-thiazol-2-ylamine hydrochloride with 0.46 g of 5-isopropyl-pyridine-2-sulfonyl chloride was stirred overnight with 2 ml of pyridine. The resulting, red colored suspension was poured into 25 ml of 1N hydrochloric acid and the solid which thereby separated was filtered off and dissolved in a mixture of 30 ml of ethanol and 20 ml of 2N sodium hydroxide solution. After the addition of 0.5 g of active charcoal the mixture was stirred at room temperature for 30 minutes and subsequently the active charcoal was filtered off. The product separated upon neutralization with concentrated hydrochloric acid. Recrystallization from 40 ml of ethanol and 20 ml of ethyl acetate yielded 0.31 g of 5-isopropyl-pyridine-2-sulfonic acid [4-(3-nitro-phenyl)-thiazol-2-yl]-amide as yellowish crystals.

후처리

  1. customthe solid which thereby separated
  2. filtrationwas filtered off
  3. dissolutiondissolved in a mixture of 30 ml of ethanol and 20 ml of 2N sodium hydroxide solution
  4. additionAfter the addition of 0.5 g of active charcoal the mixture
  5. filtrationsubsequently the active charcoal was filtered off
  6. customThe product separated upon neutralization with concentrated hydrochloric acid
  7. customRecrystallization from 40 ml of ethanol and 20 ml of ethyl acetate

출처 및 근거

ORD 기록
ord-1e202543db3340a58d9c937d4c27f199
출처 데이터셋
uspto-grants-1999_09
특허 번호
US05958910

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