Water → tert-butyl 9-(2-methylpropa-1-ene-1-yl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate

HRID 886939노트

반응식

HRID 886939 반응식
Br[C:2]1[C:12]2[O:11][CH2:10][CH2:9][N:8]([C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])[CH2:7][C:6]=2[CH:5]=[CH:4][CH:3]=1.[CH3:20][C:21]([CH3:26])=[CH:22]B(O)O.C(=O)([O-])[O-].[Na+].[Na+].O>C(COC)OC.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:22][C:21]([CH3:26])=[CH:20][C:2]1[C:12]2[O:11][CH2:10][CH2:9][N:8]([C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])[CH2:7][C:6]=2[CH:5]=[CH:4][CH:3]=1

참가 물질

7

반응물 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 27632992,2-Dimethylethenylboronic acidHCID 59403519Tert-butyl 9-bromo-2,3-dihydrobenzo[F][1,4]oxazepine-4(5H)-carboxylate

생성물 1

HCID 68580669tert-butyl 9-(2-methylpropa-1-ene-1-yl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate수율 89.1%

시약·촉매·용매 2

HCID 178418397HCID 178418397, 화합물촉매HCID 80711,2-Dimethoxyethane용매

반응 조건

온도
85 °C

실험 절차

A mixture of tert-butyl 9-bromo-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate (328 mg, 1.00 mmol), 2,2-dimethylethenylboronic acid (98.0 mg, 1.00 mmol), saturated aqueous sodium carbonate solution (14 ml) and tetrakis(triphenylphosphine)palladium(0) (32.6 mg, 0.0282 mmol) in dimethoxyethane (10 ml) was stirred at 85° C. for 12 hr under a nitrogen atmosphere. The reaction mixture was poured into water, and the mixture was extracted with ethyl acetate. The extract was washed with water, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (hexane:ethyl acetate=9:1) to give the desired product (270 mg, 89.1%) as an oil.

후처리

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe extract was washed with water
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. customthe residue was purified by silica gel column chromatography (hexane:ethyl acetate=9:1)

출처 및 근거

ORD 기록
ord-1174098bd9524501ac696714c81e7678
출처 데이터셋
uspto-grants-2012_08
특허 번호
US08247403B2

반응 노트

불러오는 중…