Sodium Bromide → HCID 13635748, compound
Reaction equation
[Na+].[Br-].C([O-])(O)=O.[Na+].[C:8]1([CH2:14][CH:15]([CH3:19])[CH2:16][CH2:17][OH:18])[CH2:13][CH2:12][CH2:11][CH2:10][CH:9]=1.[O-]Cl.[Na+]>C1(C)C=CC=CC=1.O>[C:8]1([CH2:14][CH:15]([CH3:19])[CH2:16][CH:17]=[O:18])[CH2:13][CH2:12][CH2:11][CH2:10][CH:9]=1Participants
7
Procedure
NaBr (0.6 g, 0.006 mol) and NaHCO3 (6.4 g, 0.076 mol) were mixed together with water (60 ml), toluene (250 g) and 4-(cyclohex-1-en-1-yl)-3-methyl butan-1-ol (96 g (0.573 mol, purity: 99% sum of the isomers) at room temperature with continuous stirring. NaOCl (13% w/w aqueous 426.8 g, 0.745 mol) was added to the reaction mass over 2 h. Stirring was continued for another 1 h. The aqueous phase was removed, organic phase was washed with a solution of NaHCO3 and then with water. The organic phase thus obtained was concentrated and crude product purified by fractional distillation to provide 4-(cyclohex-1-en-1-yl)-3-methylbutanal (62.6 g, yield: 66%, GC purity: 95% sum of the isomers).
Workup
- customThe aqueous phase was removed
- washorganic phase was washed with a solution of NaHCO3
- customThe organic phase thus obtained
- concentrationwas concentrated
- distillationcrude product purified by fractional distillation
Sources & evidence
- ORD record
- ord-5cd1db1362bd4ace8a2d30577b0d3b2b
- Source dataset
- uspto-grants-2015_11
- Patent number
- US09187709B2
Reaction notes
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