Thionyl Chloride → 2,4-Dibenzyloxyphenylacetyl chloride
Reaction equation
[CH2:1]([O:8][C:9]1[CH:14]=[C:13]([O:15][CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[CH:12]=[CH:11][C:10]=1[CH2:23][C:24]([OH:26])=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.S(Cl)([Cl:29])=O>C1C=CC=CC=1>[CH2:1]([O:8][C:9]1[CH:14]=[C:13]([O:15][CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[CH:12]=[CH:11][C:10]=1[CH2:23][C:24]([Cl:29])=[O:26])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
2,4-Dibenzyloxyphenylacetic acid [IX] (1.4 g) was dissolved in anhydrous benzene (30 ml) and then thereto was added thionyl chloride (5 g) and the mixture was left to stand at room temperature (20° C.) for 20 minutes. The reaction mixture was concentrated to dryness under reduced pressure to obtain crude 2,4-dibenzyloxyphenylacetyl chloride [X]. This was used for the subsequent reaction without purification.
Workup
- waitthe mixture was left
- customto stand at room temperature
- custom(20° C.)
- customfor 20 minutes
- concentrationThe reaction mixture was concentrated to dryness under reduced pressure
Sources & evidence
- ORD record
- ord-ba3f87860b5f475f8585b1637f92c618
- Source dataset
- uspto-grants-1991_02
- Patent number
- US04990614
Reaction notes
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