Oxalyl chloride → HCID 23445624, compound
Reaction equation
[CH2:1]([C:3]1[CH:4]=[C:5]([CH:9]=[C:10]([CH2:14][CH3:15])[C:11]=1[O:12][CH3:13])[C:6]([OH:8])=O)[CH3:2].C(Cl)(=O)C(Cl)=O.[Sn].[CH2:23]([C:30]1[O:31][C:32]([CH3:36])=[C:33]([CH3:35])[CH:34]=1)[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1>>[CH2:23]([C:30]1[O:31][C:32]([CH3:36])=[C:33]([CH3:35])[C:34]=1[C:6]([C:5]1[CH:9]=[C:10]([CH2:14][CH3:15])[C:11]([O:12][CH3:13])=[C:3]([CH2:1][CH3:2])[CH:4]=1)=[O:8])[C:24]1[CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=1Participants
5
Procedure
The title compound was prepared according to the procedure in Example 5, step 2, using 3,5-diethyl-4-methoxybenzoic acid (10.66 g, 51.3 mmol), oxalyl chloride (4.90 mL, 56.3 mmol), N,N-DMF (2 drops), tin IV chloride (6.60 mL, 56.3 mmol) and 2-benzyl-4,5-dimethylfuran (11.4 g, 61.3 mmol) to give 22.0 g, of the title compound. 1H NMR δ1.13 (t, 6H), 1.83 (s, 3H), 2.19 (s, 3H), 2.61 (q, 4H), 3.74 (s, 3H), 3.82 (s, 2H), 7.05 (d, 2H), 7.23-7.27 (m, 3H), 7.42 (s, 2H). mass spectrum (EI), m/z 376 (M+).
Workup
- customThe title compound was prepared
- customto give 22.0 g
Sources & evidence
- ORD record
- ord-c3d08b1ee743495d8db61d4fa1939c14
- Source dataset
- uspto-grants-2001_06
- Patent number
- US06248764B1
Reaction notes
Loading…