3-Chloro-2,2-dimethylpropanoyl chloride → HCID 86740845, compound
Reaction equation
[Cl:1][CH2:2][C:3]([CH3:8])([CH3:7])[C:4](Cl)=[O:5].[NH2:9]/[C:10](/[CH3:17])=[CH:11]\[C:12]([O:14][CH2:15][CH3:16])=[O:13]>>[Cl:1][CH2:2][C:3]([CH3:8])([CH3:7])[C:4]([NH:9]/[C:10](/[CH3:17])=[CH:11]\[C:12]([O:14][CH2:15][CH3:16])=[O:13])=[O:5]Participants
3
Procedure
Ethyl N-(β-chloropivaloyl)-3-aminocrotonate was prepared in 42% yield from β-chloropivaloyl chloride and ethyl 3-aminocrotonate by the procedure used in Example 5. M.P. 76°-77.5° C. (after recrystallization from hexanes); IR (KBr) 1705, 1675 cm-1 ; 'HNMR δ 1.06-1.23 (9H, m), 2.3 (3H, s), 3.6 (2H, s), 4.0-4.23 (2H, q) 6.7 (1H, s), 6.8-7.1 (1H, br).
Workup
- customM.P. 76°-77.5° C. (after recrystallization from hexanes)
Sources & evidence
- ORD record
- ord-5cd53f83772a4b5db12c69385cf1f654
- Source dataset
- uspto-grants-1986_06
- Patent number
- US04595532
Reaction notes
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