Reaction equation
[C:1](#[N:5])[CH:2]([CH3:4])[OH:3].[ClH:6].[CH2:7]([O:9]CC)[CH3:8]>C(O)C>[ClH:6].[CH2:7]([O:9][C:1](=[NH:5])[CH:2]([OH:3])[CH3:4])[CH3:8]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of lactonitrile (378 g, 5.32 mol) in ethyl ether (1.46 L) and ethanol (0.34 L) was saturated with hydrogen chloride gas at 0-5° C. for 0.5 h and kept at 5° C. for 60 h. The resulting precipitate was filtered off and washed twice with ethyl ether to give the title compound of Preparation Twelve, Step A as a solid, 815 g (99%). mp: 165-168° C.; 1H NMR (CD3OD, 250 MHz) δ 1.45-1.53 (c, 6H), 4.40-4.61 (c, 3H).
Workup
- filtrationThe resulting precipitate was filtered off
- washwashed twice with ethyl ether
- customto give
Sources & evidence
- ORD record
- ord-cfe905b7dcdf4141ae31358d000bafd6
- Source dataset
- uspto-grants-2005_08
- Patent number
- US06936600B2
Linked notes
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