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2-Cyclohexen-1-one → 3-[4-(7-[2-(Trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]cyclohexanone

HRID 45021
Notes
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Reaction equation

HRID 45021 reaction equation
[NH:1]1[CH:5]=[C:4]([C:6]2[C:7]3[CH:14]=[CH:13][N:12]([CH2:15][O:16][CH2:17][CH2:18][Si:19]([CH3:22])([CH3:21])[CH3:20])[C:8]=3[N:9]=[CH:10][N:11]=2)[CH:3]=[N:2]1.[C:23]1(=[O:29])[CH2:28][CH2:27][CH2:26][CH:25]=[CH:24]1.C1CCN2C(=NCCC2)CC1>C(#N)C>[CH3:20][Si:19]([CH3:22])([CH3:21])[CH2:18][CH2:17][O:16][CH2:15][N:12]1[C:8]2[N:9]=[CH:10][N:11]=[C:6]([C:4]3[CH:5]=[N:1][N:2]([CH:25]4[CH2:26][CH2:27][CH2:28][C:23](=[O:29])[CH2:24]4)[CH:3]=3)[C:7]=2[CH:14]=[CH:13]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 135942-Cyclohexen-1-oneHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 426313464-(1H-Pyrazol-4-yl)-7-(2-(trimethylsilyl)ethoxy)methyl-7 H-pyrrolo(2,3-d)-pyrimidine

Product 1

HCID 574779853-[4-(7-[2-(Trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]cyclohexanoneYield 98%

Reagents, catalysts & solvents 1

HCID 6342
Acetonitrile
Solvent

Procedure

To a solution of 4-(1H-pyrazol-4-yl)-7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidine (309 mg, 0.980 mmol) in ACN (6 mL) was added 2-cyclohexen-1-one (190 μL, 01.96 mmol), followed by DBU (40 μL, 0.3 mmol). The resulting mixture was stirred for one hour at which point LCMS indicated complete addition. The mixture was reduced in vacuo and the crude product was purified by column chromatography to obtain the product (397 mg, 98%). 1H NMR (400 MHz, CDCl3): δ 8.84 (s, 1H), 8.27 (s, 1H), 8.25 (s, 1H), 7.45 (d, 1H), 6.79 (d, 1H), 5.67 (s, 2H), 4.61 (m, 1H), 3.55 (m, 2H), 3.05-2.90 (m, 2H), 2.45-2.30 (m, 4H), 2.05 (m, 1H), 1.90 (m, 1H), 0.92 (m, 2H), −0.06 (s, 9H). MS (EI) m/z=412.2 (M+H).

Workup

  1. additionaddition
  2. customthe crude product was purified by column chromatography

Sources & evidence

ORD record
ord-e1eee975c25d42518ae319f85fa06301
Source dataset
uspto-grants-2013_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08541425B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes