Toluene → HCID 22600462, compound

HRID 1784150Notes

Reaction equation

HRID 1784150 reaction equation
Cl[C:2]1[CH:8]2[CH2:9][CH:5]([CH2:6][CH2:7]2)[C:4](=[O:10])[CH:3]=1.[CH3:11][O:12][CH2:13][CH2:14][O:15][CH2:16][C:17]1[N:25]=[C:24]([C:26]([F:29])([F:28])[F:27])[CH:23]=[CH:22][C:18]=1[C:19]([OH:21])=[O:20].C(N(C(C)C)CC)(C)C.C1(C)C=CC=CC=1>[Cl-].[Cl-].[Zn+2].ClCCl>[CH3:11][O:12][CH2:13][CH2:14][O:15][CH2:16][C:17]1[C:18]([C:19]([O:21][C:2]2[CH:8]3[CH2:9][CH:5]([CH2:6][CH2:7]3)[C:4](=[O:10])[CH:3]=2)=[O:20])=[CH:22][CH:23]=[C:24]([C:26]([F:29])([F:27])[F:28])[N:25]=1

Participants

7

Reactant 4

HCID 1140TolueneHCID 81531DiisopropylethylamineHCID 113349532-(2-Methoxy-ethoxymethyl)-6-trifluoromethyl-nicotinic acidHCID 57591516HCID 57591516, compound

Product 1

HCID 22600462HCID 22600462, compound

Reagents, catalysts & solvents 2

HCID 3007855ZincchlorideCatalystHCID 6344DichloromethaneSolvent

Procedure

A mixture of 200 mg (1.15 mmol) of 4-chlorobicyclo[3.2.1]oct-3-en-2-one, (Preparation Example P2) 16 mg (0.12 mmol) of ZnCl2, 324 mg (1.15 mmol) of 2-methoxyethoxymethyl-6 -trifluoromethylnicotinic acid, 166 mg (1.27 mmol) of diisopropylethylamine and 5 ml of toluene is stirred under a nitrogen atmosphere at room temperature until a clear brown solution having a white sediment is formed. The reaction mixture is then maintained under moderate reflux for 26 hours in an oil bath, with stirring. The reaction mixture is then cooled to ambient temperature and 30 ml of dichloromethane are added. The solution is then washed twice with water (20 ml each time) and then twice with 0.1M hydrochloric acid (20 ml each time) and again twice with water (15 ml each time). After drying the organic solution using magnesium sulfate and concentrating in vacuo, 284 mg of 4-(2-methoxyethoxymethyl-6-trifluoromethyl-pyridin-3-ylcarbonyloxy)-bicyclo[3.2.1]oct-3-en-2-one are obtained in the form of a brown oil.

Workup

  1. customis formed
  2. temperatureThe reaction mixture is then maintained
  3. temperatureunder moderate reflux for 26 hours in an oil bath
  4. stirringwith stirring
  5. temperatureThe reaction mixture is then cooled to ambient temperature
  6. washThe solution is then washed twice with water (20 ml each time)
  7. customAfter drying the organic solution
  8. concentrationconcentrating in vacuo, 284 mg of 4-(2-methoxyethoxymethyl-6-trifluoromethyl-pyridin-3-ylcarbonyloxy)-bicyclo[3.2.1]oct-3-en-2-one
  9. customare obtained in the form of a brown oil

Sources & evidence

ORD record
ord-e08e1cbc6beb424492820e89b8e50368
Source dataset
uspto-grants-2009_03
Patent number
US07501544B2

Reaction notes

Loading…