반응 #69403

ord-23547f41ebaf4837bd1d7a5c574a0f8c

반응 방정식

O=C(CBr)c1ccccc1
2-bromo-1-phenylethanone
CCOc1ccc(C(N)=O)cc1OCC
3,4-diethoxybenzamide
O=C([O-])O.[Na+]
NaHCO3
CCOc1ccc(-c2nc(-c3ccccc3)co2)cc1OCC
product
수율 17.0%
CCOc1ccc(-c2nc(-c3ccccc3)co2)cc1OCC
2-(3,4-diethoxyphenyl)-4-phenyloxazole
수율 17.0%

용매

반응 조건

온도
170°CELSIUS
상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    추출extracted with EtOAc (50 ml×3)
  2. 2
    세척The combined organic phases were washed with a saturated solution of NaCl (30 ml×2)
  3. 3
    농축concentrated under reduced pressure
  4. 4
    기타The product was purified by column chromatography

실험 절차

In a microwave vial were dissolved 2-bromo-1-phenylethanone (95 mg, 0.478 mmol) and 3,4-diethoxybenzamide (100 mg, 0.478 mmol) in DMF (5 ml) and the reaction was heated at 170° C. for 40 min. The reaction mixture was poured in a saturated solution of NaHCO3 and extracted with EtOAc (50 ml×3). The combined organic phases were washed with a saturated solution of NaCl (30 ml×2) and concentrated under reduced pressure. The product was purified by column chromatography using CH2Cl2:MeOH (95:5) to yield 25 mg (17%) of the product. MS (EI) m/z: 310 (M+)

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US08530503B2uspto-grants-2013_09