Potassium Bromide → HCID 21659422, compound
Reaction equation
[CH2:1]([CH:3]1[CH2:7][C:6]2[C:8]([CH3:22])=[C:9]([O:14]CC3C=CC=CC=3)[C:10]([CH3:13])=[C:11]([CH3:12])[C:5]=2[O:4]1)[CH3:2].[K+].[Br-]>>[CH2:1]([CH:3]1[CH2:7][C:6]2[C:8]([CH3:22])=[C:9]([OH:14])[C:10]([CH3:13])=[C:11]([CH3:12])[C:5]=2[O:4]1)[CH3:2]Participants
3
Procedure
The de-benzylization of the 2-(RS)-ethyl-2,3-dihydro-5-benzyloxy-4,6,7-trimethylbenzofurane is done by following the procedure given in example 15. A white solid is obtained. m.p. 73°-75° C.; IR (KBr): 3378 cm-1 (νOH); 1H-NMR (CDCl3): δ4.9-4.5 (1H,m), 4.2 (1H,s), 3.3-2.7 (2H,m), 2.1 (6H,s), 2.0 (3H,s), 1.8- 1.5 (2H,m), 1.1 (3H,t).
Workup
- customA white solid is obtained
Sources & evidence
- ORD record
- ord-3717bb1f21b5403aa41dc5218fdf5212
- Source dataset
- uspto-grants-1992_05
- Patent number
- US05114966
Reaction notes
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