Water → [2-(4-Methoxyphenyl)-1,3-thiazol-4-yl]methanol
Reaction equation
[H-].[H-].[H-].[H-].[Li+].[Al+3].C([O:9][C:10]([C:12]1[N:13]=[C:14]([C:17]2[CH:22]=[CH:21][C:20]([O:23][CH3:24])=[CH:19][CH:18]=2)[S:15][CH:16]=1)=O)C.O.[OH-].[Na+]>C1COCC1>[CH3:24][O:23][C:20]1[CH:19]=[CH:18][C:17]([C:14]2[S:15][CH:16]=[C:12]([CH2:10][OH:9])[N:13]=2)=[CH:22][CH:21]=1Participants
Conditions
- Temperature
- 60 °C
Procedure
To an ice-cold suspension of LAH (0.08 g, 2.07 mmol) in 10 ml of anhydrous THF was added a solution of 2-(4-Methoxy-phenyl)-thiazole-4-carboxylic acid ethyl ester (0.26 g, 0.98 mmol) in 5 ml of THF. The reaction mixture was heated up to 60° C. for 1 h. After the completion of the reaction mixture (TLC monitoring), the reaction mixture was cooled to 0° C., water (2.0 ml) was added followed by the addition of 15% NaOH solution (2 mL) and finally 4 ml of water. The resulting solution was filtered through celite bed and concentrated under reduced pressure; water (25 mL) was added and extracted with ethyl acetate (3×50 mL). The combined organics was washed with water, brine, dried (Na2SO4), filtered and concentrated to give the desired product (0.14 g, 64%).
Workup
- temperatureAfter the completion of the reaction mixture (TLC monitoring), the reaction mixture was cooled to 0° C.
- filtrationThe resulting solution was filtered through celite bed
- concentrationconcentrated under reduced pressure
- additionwater (25 mL) was added
- extractionextracted with ethyl acetate (3×50 mL)
- washThe combined organics was washed with water, brine
- dry with materialdried (Na2SO4)
- filtrationfiltered
- concentrationconcentrated
Sources & evidence
- ORD record
- ord-8657095d0c8c4d19b489d9c1b6e26850
- Source dataset
- uspto-grants-2012_01
- Patent number
- US08088791B2
Reaction notes
Loading…