Ethylene Glycol → 2-Amino-5-methoxybenzene-1-thiol

HRID 339491

반응식

HRID 339491 반응식
NC1[S:3][C:4]2[CH:10]=[C:9]([O:11][CH3:12])[CH:8]=[CH:7][C:5]=2[N:6]=1.C(O)CO.[OH-].[K+].C1(C)C=CC=CC=1>C(O)(=O)C>[CH3:12][O:11][C:9]1[CH:8]=[CH:7][C:5]([NH2:6])=[C:4]([SH:3])[CH:10]=1

참가 물질

6

반응물 4

HCID 174Ethylene GlycolHCID 1140TolueneHCID 14797Potassium HydroxideHCID 156302-Amino-6-methoxybenzothiazole

생성물 1

HCID 2355092-Amino-5-methoxybenzene-1-thiol수율 86%

시약·촉매·용매 1

HCID 176Acetic Acid용매

실험 절차

A mixture of 2-amino-6-methoxybenzothiazole (15 g, 83.2 mmol), ethylene glycol (20.23 g, 0.33 mol) and 50% w/v KOH (100 ml) was heated under reflux for 24 h. On cooling to room temperature, toluene (60 ml) was added and the reaction mixture was cooled in an ice-bath and acidified with acetic acid (final pH 5-6). The reaction mixture was extracted with toluene (5×300 ml) and the combined organic extracts were washed with brine (2×200 ml), dried (MgSO4) and the solvent removed under reduced pressure to give the title compound (11.1 g, 86%) as a yellow solid which was used without further purification.

후처리

  1. temperaturewas heated
  2. temperatureunder reflux for 24 h
  3. temperaturethe reaction mixture was cooled in an ice-bath
  4. extractionThe reaction mixture was extracted with toluene (5×300 ml)
  5. washthe combined organic extracts were washed with brine (2×200 ml)
  6. dry with materialdried (MgSO4)
  7. customthe solvent removed under reduced pressure

출처 및 근거

ORD 기록
ord-22959295e8014ca5a9c92ed2a7a66d90
출처 데이터셋
uspto-grants-2014_11
특허 번호
US08895313B2

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