Hydrochloric Acid → HCID 22001065, compound
Reaction equation
[CH3:1][C:2]([CH3:17])=[CH:3][CH2:4][CH2:5][N:6]1[C:10](=[O:11])[C:9]2=[CH:12][CH:13]=[CH:14][CH:15]=[C:8]2[C:7]1=[O:16].[N:18]([O:20]CCC(C)C)=O.[ClH:26]>>[Cl:26][C:2]([CH3:17])([CH3:1])[CH:3]([N:18]=[O:20])[CH2:4][CH2:5][N:6]1[C:7](=[O:16])[C:8]2=[CH:15][CH:14]=[CH:13][CH:12]=[C:9]2[C:10]1=[O:11]Participants
4
Procedure
To a cooled (0-5° C.) solution of 4-methyl-1-(phthalimido)-3-pentene (5.0 g, 0.022 mol) and isoamyl nitrite (13.0 g, 15 mL, 0.11 mol) was added concentrated hydrochloric acid (4.0 mL, 0.04 mol) with stirring. The reaction mixture was maintained below 5° C. during the addition and stirred at 5° C. for an additional 2 h. The solid formed was filtered and washed with cold ether:ethanol (3:1, 150 mL) and dried. Yield: 4.72 g (72.8%). It was crystallized from acetonitrile. mp 140-141° C. MS: (M+H)+=296.0.
Workup
- temperatureThe reaction mixture was maintained below 5° C. during the addition
- stirringstirred at 5° C. for an additional 2 h
- customThe solid formed
- filtrationwas filtered
- washwashed with cold ether:ethanol (3:1, 150 mL)
- customdried
- customIt was crystallized from acetonitrile
Sources & evidence
- ORD record
- ord-0bc7d75fad2645578e24cdb34c1121af
- Source dataset
- uspto-grants-2008_07
- Patent number
- US07399460B2
Reaction notes
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