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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 40990
Notes
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Reaction equation

HRID 40990 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-2ff1afe31aa94f59a5a385266a275dac
Source dataset
uspto-grants-2013_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08530485B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes