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Acetyl chloride → (4-Chloro-2-{4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.0(2),]dodeca-2(6),7-dien-10-yl}pyridin-3-yl)methyl acetate

HRID 1411782
Notes
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Reaction equation

HRID 1411782 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][N:5]=[C:4]([N:8]2[CH2:19][CH2:18][N:17]3[C:10](=[CH:11][C:12]4[CH2:13][C:14]([CH3:21])([CH3:20])[CH2:15][C:16]=43)[C:9]2=[O:22])[C:3]=1[CH2:23][OH:24].C(N(CC)CC)C.[C:32](Cl)(=[O:34])[CH3:33]>C1COCC1>[C:32]([O:24][CH2:23][C:3]1[C:4]([N:8]2[CH2:19][CH2:18][N:17]3[C:10](=[CH:11][C:12]4[CH2:13][C:14]([CH3:21])([CH3:20])[CH2:15][C:16]=43)[C:9]2=[O:22])=[N:5][CH:6]=[CH:7][C:2]=1[Cl:1])(=[O:34])[CH3:33]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 6367Acetyl chlorideHCID 8471TriethylamineHCID 866843692-(4-chloro-3-(hydroxymethyl)pyridin-2-yl)-7,7-dimethyl-2,3,4,6,7,8-hexahydro-1H-cyclopenta[4,5]pyrrolo[1,2-a]pyrazin-1-one

Product 1

HCID 86684370(4-Chloro-2-{4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.0(2),]dodeca-2(6),7-dien-10-yl}pyridin-3-yl)methyl acetateYield 76%

Reagents, catalysts & solvents 1

HCID 8028
Tetrahydrofuran
Solvent
2×

Procedure

A 250-mL single-neck round-bottomed flask equipped with a magnetic stirrer was charged with 199c (7.0 g, 20.2 mmol, 1.0 eq.), triethylamine (4.08 g, 40.4 mmol, 2.0 eq.), and THF (50 mL). To the mixture was added the solution of acetyl chloride (2.36 g, 30.3 mmol, 1.5 eq.) in THF (20 mL) dropwise. The reaction mixture was stirred at room temperature for one hour. After the reaction was completed, it was quenched with ice water and evaporated under reduced pressure. The residue was extracted with dichloromethane. The combined organic layer was dried over Na2SO4 and concentrated under reduced pressure. The resulting residue was washed with 1:8 ethyl acetate/petroleum to afford 199d as a white solid (5.9 g, 76%). MS-ESI: [M+H]+ 388.3.

Workup

  1. customA 250-mL single-neck round-bottomed flask equipped with a magnetic stirrer
  2. customit was quenched with ice water
  3. customevaporated under reduced pressure
  4. extractionThe residue was extracted with dichloromethane
  5. dry with materialThe combined organic layer was dried over Na2SO4
  6. concentrationconcentrated under reduced pressure
  7. washThe resulting residue was washed with 1:8 ethyl acetate/petroleum

Sources & evidence

ORD record
ord-ec114d28d51d4ddbac716528ddb0a065
Source dataset
uspto-grants-2014_12
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08921353B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes