Dichloromethane → HCID 22054208, compound
Reaction equation
C(Cl)(=O)C(Cl)=O.C(Cl)Cl.[CH3:10][O:11][C:12]1[C:13](=[O:40])[C:14]([CH3:39])=[C:15]([CH2:21][C:22]2[CH:23]=[CH:24][C:25]([O:31][CH2:32][C:33]3[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=3)=[C:26]([CH:30]=2)[C:27](O)=[O:28])[C:16](=[O:20])[C:17]=1[O:18][CH3:19].[NH:41]1[CH2:46][CH2:45][O:44][CH2:43][CH2:42]1>C1COCC1>[CH3:10][O:11][C:12]1[C:13](=[O:40])[C:14]([CH3:39])=[C:15]([CH2:21][C:22]2[CH:23]=[CH:24][C:25]([O:31][CH2:32][C:33]3[CH:34]=[CH:35][CH:36]=[CH:37][CH:38]=3)=[C:26]([CH:30]=2)[C:27]([N:41]2[CH2:46][CH2:45][O:44][CH2:43][CH2:42]2)=[O:28])[C:16](=[O:20])[C:17]=1[O:18][CH3:19]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
Oxalyl chloride (0.150 g, 1.18 mmol) was added to a methylene chloride solution (5 ml) of 5-(5,6-dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-benzyloxybenzoic acid (0.050 g, 0.118 mmol) and the resulting solution was stirred at room temperature for 1 hour. The reaction solution was concentrated and after adding a THF solution of morpholine (0.036 g, 0.414 mmol) to the obtained residue, the solution was stirred at room temperature for 30 minutes. The reaction solution was poured into ice water and then extracted with methylene chloride. The extract was washed with water and then dried, and the solvent was removed by distillation. The obtained residue was purified by preparative thin-layer chromatography (hexand:ethyl acetate=1:1) to obtain the titled compound (0.058 g, 0.117 mmol, 99%).
Workup
- concentrationThe reaction solution was concentrated
- stirringthe solution was stirred at room temperature for 30 minutes
- extractionextracted with methylene chloride
- washThe extract was washed with water
- customdried
- customthe solvent was removed by distillation
- customThe obtained residue was purified by preparative thin-layer chromatography (hexand:ethyl acetate=1:1)
Sources & evidence
- ORD record
- ord-d3a3e1809a744fa9b854b1a108b1980f
- Source dataset
- uspto-grants-2006_06
- Patent number
- US07064124B2
Reaction notes
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