Triethylamine → 6-(4-Isocyanatophenoxy)-hexanoic acid methyl ester

HRID 638725

반응식

HRID 638725 반응식
[CH3:1][O:2][C:3](=[O:17])[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][O:9][C:10]1[CH:15]=[CH:14][C:13]([NH2:16])=[CH:12][CH:11]=1.C(N(CC)CC)C.Cl[C:26](Cl)([O:28]C(=O)OC(Cl)(Cl)Cl)Cl>C1(C)C=CC=CC=1>[CH3:1][O:2][C:3](=[O:17])[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][O:9][C:10]1[CH:15]=[CH:14][C:13]([N:16]=[C:26]=[O:28])=[CH:12][CH:11]=1

참가 물질

5

반응물 3

HCID 8471TriethylamineHCID 94429TriphosgeneHCID 146502966-(4-Aminophenoxy)-hexanoic acid methyl ester

생성물 1

HCID 497644906-(4-Isocyanatophenoxy)-hexanoic acid methyl ester수율 72.3%

시약·촉매·용매 1

HCID 1140Toluene용매

반응 조건

온도
75 °C

실험 절차

To a mixture of 6-(4-amino-phenoxy) hexanoic acid methyl ester 21 (26 grams, 109.7 mmol) and triethylamine (29.2 g, 288.56 mmol) in toluene (390 ml) under nitrogen atm. was added triphosgene (15.6 grams, 52.56 mmol) in one lot. The reaction was exothermic and the internal temperature rose to 60° C. Later, the reaction mixture was heated to 75° C. over a period of one hour and maintained at this temperature for 26 hours. The reaction mixture was cooled to room temperature, the solids were filtered, and the toluene was distilled off under vacuum to get crude 36, which was vacuum distilled to get pure 36 (10 g, 34.7%). M.p: 47-50° C.

후처리

  1. customrose to 60° C
  2. temperaturemaintained at this temperature for 26 hours
  3. temperatureThe reaction mixture was cooled to room temperature
  4. filtrationthe solids were filtered
  5. distillationthe toluene was distilled off under vacuum
  6. customto get crude 36, which
  7. distillationdistilled

출처 및 근거

ORD 기록
ord-cf37ab8dbac84da9a6c6b8284979948b
출처 데이터셋
uspto-grants-2010_04
특허 번호
US07691364B2

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