Triacetoxyperiodinane → HCID 178501146, 화합물

HRID 505270노트

반응식

HRID 505270 반응식
[OH:1][CH2:2][C@H:3]1[CH2:8][CH2:7][C@H:6]([C:9]([O:11][CH3:12])=[O:10])[CH2:5][CH2:4]1.CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O>C(Cl)Cl.CCOC(C)=O>[CH:2]([C@H:3]1[CH2:4][CH2:5][C@H:6]([C:9]([O:11][CH3:12])=[O:10])[CH2:7][CH2:8]1)=[O:1]

참가 물질

5

반응물 2

HCID 159087TriacetoxyperiodinaneHCID 178501147HCID 178501147, 화합물

생성물 1

HCID 178501146HCID 178501146, 화합물

시약·촉매·용매 2

HCID 6344Dichloromethane용매HCID 8857Ethyl Acetate용매

실험 절차

To a flask containing methyl trans-4-(hydroxymethyl)cyclohexanecarboxylate (100 mg, 0.581 mmol) in CH2Cl2 (5.8 mL) at 0° C., was added Dess-Martin periodinane (493 mg, 1.16 mmol). The reaction was allowed to warm to room temperature over an hour and then was diluted with EtOAc (60 mL), washed with saturated K2CO3 solution (3×40 mL) and brine (40 mL). The organic layer was dried over Na2SO4, filtered, and concentrated. Purification of the residue by flash chromatography on silica gel (0 to 25% EtOAc/hexanes) afforded methyl trans-4-formylcyclohexanecarboxylate. Rf=0.87 (25% EtOAc/hexanes). 1H NMR (CDCl3, 500 MHz) δ 9.63 (s, 1H), 3.67 (s, 3H), 2.51-2.05 (m, 6H), 1.63-1.26 (m, 4H).

후처리

  1. washwashed with saturated K2CO3 solution (3×40 mL) and brine (40 mL)
  2. dry with materialThe organic layer was dried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customPurification of the residue by flash chromatography on silica gel (0 to 25% EtOAc/hexanes)

출처 및 근거

ORD 기록
ord-c9c564c38abd463894deb01d5fc025bf
출처 데이터셋
uspto-grants-2010_08
특허 번호
US07781426B2

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