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Dimethyl Disulfide → 3-[Cyano-(3-ethyl-5-isopropyl-2,6-dioxo-1,2,3,6-tetrahydro-pyrimidin-4-yl)-methyl]-5-methyl-benzonitrile

HRID 2194764
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HRID 2194764 반응식
[C:1]([CH:3]([C:13]1[N:14]([CH2:27][CH3:28])[C:15](=[O:26])[N:16](COC)[C:17](=[O:22])[C:18]=1[CH:19]([CH3:21])[CH3:20])[C:4]1[CH:5]=[C:6]([CH:9]=[C:10]([CH3:12])[CH:11]=1)[C:7]#[N:8])#[N:2].CSSC>ClCCl>[C:1]([CH:3]([C:13]1[N:14]([CH2:27][CH3:28])[C:15](=[O:26])[NH:16][C:17](=[O:22])[C:18]=1[CH:19]([CH3:21])[CH3:20])[C:4]1[CH:5]=[C:6]([CH:9]=[C:10]([CH3:12])[CH:11]=1)[C:7]#[N:8])#[N:2]
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HCID 12232Dimethyl DisulfideHCID 252149573-[Cyano-(3-ethyl-5-isopropyl-1-methoxymethyl-2,6-dioxo-1,2,3,6-tetrahydro-pyrimidin-4-yl)-methyl]-5-methyl-benzonitrile

생성물 1

HCID 252149563-[Cyano-(3-ethyl-5-isopropyl-2,6-dioxo-1,2,3,6-tetrahydro-pyrimidin-4-yl)-methyl]-5-methyl-benzonitrile수율 89.2%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a stirred solution of 3-[cyano-(3-ethyl-5-isopropyl-1-methoxymethyl-2,6-dioxo-1,2,3,6-tetrahydro-pyrimidin-4-yl)-methyl]-5-methyl-benzonitrile (190 mg, 0.5 mmol) in dichloromethane (5 mL) at room temperature, were added dimethyl disulfide (804 μL, 10 mmol) and boron trifluoride-diethyl etherate (300 μL, 2.37 mmol). After stirring for 3 days, the mixture was evaporated in vacuo and the residue was purified by silica gel column chromatography (eluent, ethyl acetate:hexane (1:1)) to give 150 mg (89%) of 3-[cyano-(3-ethyl-5-isopropyl-2,6-dioxo-1,2,3,6-tetrahydro-pyrimidin-4-yl)-methyl]-5-methyl-benzonitrile as a white solid. The product was recrystallized from chloroform-methanol-ether. m.p. 260-261° C.; 1H-NMR (200 MHz, DMSO-d6) δ 0.77 (3H, d, J=6.6 Hz), 1.07 (3H, t, J=7.0 Hz), 1.19 (3H, d, J=6.6 Hz), 2.41 (3H, s), 2.49 (1H, m), 3.68 (1H, m), 4.00 (1H, m), 6.22 (1H, s), 7.59 (1H, s), 7.71 (1H, s), 7.73 (1H, s), 11.45 (1H, s); m/z (EI) 336 (M+).

후처리

  1. customthe mixture was evaporated in vacuo
  2. customthe residue was purified by silica gel column chromatography (eluent, ethyl acetate:hexane (1:1))

출처 및 근거

ORD 기록
ord-b618a4038a1a4cc884dd8b4d6bd362b7
출처 데이터셋
uspto-grants-2012_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08334295B2

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