Acetone Cyanohydrin → 5,6-Dihydro-4-hydroxy-6-(3-methylbutyl)-6-phenyl-3-phenylmethyl-2H-pyran-2-one

HRID 481911노트

반응식

HRID 481911 반응식
[OH:1][C:2]1[CH2:7][C:6]([CH2:14][CH2:15][CH:16]([CH3:18])[CH3:17])([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[O:5][C:4](=[O:19])[CH:3]=1.CCN(CC)CC.[C:27](Cl)(=O)[C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1.CC(C)(O)C#N.C([BH3-])#N.[Na+]>C(O)(=O)C.C(#N)C.C(Cl)Cl>[OH:1][C:2]1[CH2:7][C:6]([CH2:14][CH2:15][CH:16]([CH3:17])[CH3:18])([C:8]2[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=2)[O:5][C:4](=[O:19])[C:3]=1[CH2:27][C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1

참가 물질

9

반응물 5

HCID 6406Acetone CyanohydrinHCID 7412Benzoyl chlorideHCID 8471Triethylamine2회HCID 5003444Sodium cyanoborohydrideHCID 546907045,6-dihydro-4-hydroxy-6-(3-methylbutyl)-6-phenyl-2H-pyran-2-one

생성물 1

HCID 547216415,6-Dihydro-4-hydroxy-6-(3-methylbutyl)-6-phenyl-3-phenylmethyl-2H-pyran-2-one

시약·촉매·용매 3

HCID 176Acetic Acid용매HCID 6342Acetonitrile용매HCID 6344Dichloromethane용매

실험 절차

The title compound was prepared as described in General Method 8 using the following: 5,6-dihydro-4-hydroxy-6-(3-methylbutyl)-6-phenyl-2H-pyran-2-one (0.300 g, 1.15 mmol), Et3N (0.17 mL, 1.2 mmol), benzoyl chloride (0.13 mL, 1.15 mmol), CH2Cl2 (4.0 mL), acetonitrile (4.0 mL), acetone cyanohydrin (0.05 mL, 0.5 mmol), Et3N (0.35 mL, 2.5 mmol), glacial acetic acid (4.0 mL), sodium cyanoborohydride (0.51 g, 8.1 mmol). Purification was achieved by submitting the final residue to column chromatograpy (SiO2, 100% CH2Cl2 to 1% MeOH in CH2 Cl2) to provide a solid (0.215 g, 46°-48° C.). 1H NMR (400 MHz, DMSO-d6) δ10.864 (bs, 1H), 7.375-7.248 (m, 7H), 7.026-7.000 (m, 2H), 6.737-6.713 (m, 1H), 3.393-3.332 (2H, obscured by solvent), 3.110 (AB, 2H, JAB =17 Hz), 1.933-1.870 (m, 2H), 1.402-1.353 (m, 1H), 1.132-1.084 (m, 1H), 0.891-0.710 (m, 7H).

후처리

  1. customPurification
  2. customto provide a solid (0.215 g, 46°-48° C.)

출처 및 근거

ORD 기록
ord-c8c9565140a64afcae635fbaeb6379b8
출처 데이터셋
uspto-grants-1998_08
특허 번호
US05789440

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