Water → HCID 19386922, 화합물

HRID 1655381노트

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HRID 1655381 반응식
[N+:1]([C:4]1[CH:5]=[CH:6][C:7]2[O:12][C:11]([CH3:14])([CH3:13])[C:10]([CH2:15][NH:16][C:17](=[O:22])[C:18]([F:21])([F:20])[F:19])=[CH:9][C:8]=2[CH:23]=1)([O-:3])=[O:2].ClC1C=CC=C(C(OO)=[O:32])C=1.O.C(=O)([O-])O.[Na+]>ClCCl>[N+:1]([C:4]1[CH:5]=[CH:6][C:7]2[O:12][C:11]([CH3:13])([CH3:14])[C:10]3([CH2:15][NH:16][C:17](=[O:22])[C:18]([F:21])([F:19])[F:20])[O:32][CH:9]3[C:8]=2[CH:23]=1)([O-:3])=[O:2]

참가 물질

6

반응물 4

HCID 962WaterHCID 70297m-Chloroperbenzoic acidHCID 516892Sodium BicarbonateHCID 193871406-nitro-2,2-dimethyl-3-(trifluoroacetamido)methyl-2H-1-benzopyran

생성물 1

HCID 19386922HCID 19386922, 화합물수율 81.7%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

A solution of 6-nitro-2,2-dimethyl-3-(trifluoroacetamido)methyl-2H-1-benzopyran (0.5 g, 1.52 mmol) in dichloromethane (10 ml) at 0° C. was treated with m-chloroperbenzoic acid (70%, 0.45 g, 1.52 mmol). After stirring for sixteen hours at room temperature, water and sodium hydrogen carbonate were added and the organic phase separated and evaporated under reduced pressure. The residue was chromatographed on silica gel, eluting with dichloromethane/acetone (95/5), to give 0.43 g of 6-nitro-2,2-dimethyl-3-(trifluoroacetamido)methyl-3,4-dihydro-3,4-epoxy-2H-1-benzopyran 1NMR (CDCl3): δ 1.4 (s, 3H) , 1.6 (s, 3H), 3.7 (dd,1H), 3.85 (s, 1H), 4.15 (dd, 1H), 6.70 (br.s, 1H), 6.95 (d, 1H), 8.2 (d, 1H), 8.30 (s, 1H).

후처리

  1. customthe organic phase separated
  2. customevaporated under reduced pressure
  3. customThe residue was chromatographed on silica gel
  4. washeluting with dichloromethane/acetone (95/5)

출처 및 근거

ORD 기록
ord-8f058da0ad61490eb3ef4e3f43a0048c
출처 데이터셋
uspto-grants-1993_10
특허 번호
US05250547

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