Ammonia → 7-Sulfamoyl-2,3-dihydro-1,4-benzodioxine-5-carboxylic acid

HRID 127395

반응식

HRID 127395 반응식
[NH3:1].Cl[S:3]([C:6]1[CH:7]=[C:8]([C:16]([OH:18])=[O:17])[C:9]2[O:14][CH2:13][CH2:12][O:11][C:10]=2[CH:15]=1)(=[O:5])=[O:4]>O>[S:3]([C:6]1[CH:7]=[C:8]([C:16]([OH:18])=[O:17])[C:9]2[O:14][CH2:13][CH2:12][O:11][C:10]=2[CH:15]=1)(=[O:5])(=[O:4])[NH2:1]

참가 물질

4

반응물 2

HCID 222AmmoniaHCID 64553167-(Chlorosulphonyl)-2,3-dihydro-1,4-benzodioxin-5-carboxylic acid

생성물 1

HCID 205447607-Sulfamoyl-2,3-dihydro-1,4-benzodioxine-5-carboxylic acid수율 87%

시약·촉매·용매 1

HCID 962Water용매

실험 절차

209 g of 34% ammonia and 97 g of 7-chlorosulfonyl-1,4-benzodioxane-5-carboxylic acid were introduced into a balloon flask provided with an agitator and a thermometer at a temperature of 5°-10° C. The mixture was agitated at ambient temperature and then the precipitate was dissolved in 415 cm3 of water. The solution was filtered and treated with 140 cm3 of concentrated hydrochloric acid. The crystals were dried off, washed with water and dried. 78 g of 7-sulfamoyl-1,4-benzodioxane-5-carboxylic acid were obtained (M.P.: 272°-274° C.; yield: 87%).

후처리

  1. customprovided with an agitator
  2. customat a temperature of 5°-10° C
  3. filtrationThe solution was filtered
  4. additiontreated with 140 cm3 of concentrated hydrochloric acid
  5. customThe crystals were dried off
  6. washwashed with water
  7. customdried

출처 및 근거

ORD 기록
ord-59290608f20644e7b3c71e10fb880512
출처 데이터셋
uspto-grants-1981_03
특허 번호
US04255580

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