Oxalyl chloride → HCID 17981884, compound
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([S:8][C:9]2[CH:14]=[CH:13][C:12]([CH2:15][CH2:16][C:17]([OH:19])=O)=[CH:11][CH:10]=2)=[CH:4][CH:3]=1.C(Cl)(=O)C([Cl:23])=O>C(Cl)Cl.CN(C=O)C>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([S:8][C:9]2[CH:14]=[CH:13][C:12]([CH2:15][CH2:16][C:17]([Cl:23])=[O:19])=[CH:11][CH:10]=2)=[CH:4][CH:3]=1Participants
5
Reactant 2
Product 1
Reagents, catalysts & solvents 2
Procedure
To a solution of acid from step 4 in CH2Cl2 (0.2M) was added oxalyl chloride (1.2 eq) and one drop of DMF. The mixture was stirred at rt for 3 h and the solvent evaporated. The crude acid chloride was used as such in the next step.
Workup
- customthe solvent evaporated
Sources & evidence
- ORD record
- ord-0654e37ea4f84859a51ca05c4242cdc5
- Source dataset
- uspto-grants-2008_03
- Patent number
- US07348433B2
Reaction notes
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