Hydroxide → 4-({[(Benzyloxy)carbonyl]amino}sulfonyl)benzoic acid
Reaction equation
[CH2:1]([O:8][C:9]([NH:11][S:12]([C:15]1[CH:24]=[CH:23][C:18]([C:19]([O:21]C)=[O:20])=[CH:17][CH:16]=1)(=[O:14])=[O:13])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[OH-]>CO>[CH2:1]([O:8][C:9]([NH:11][S:12]([C:15]1[CH:16]=[CH:17][C:18]([C:19]([OH:21])=[O:20])=[CH:23][CH:24]=1)(=[O:13])=[O:14])=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
A suspension of methyl 4-({[(benzyloxy)carbonyl]amino}-sulfonyl)benzoate (3.38 g) and 85% pottasium hydroxide (1.28 g) in methanol (40 mL) was stirred for 35 minutes. Methanol was evaporated off, and to the mixture was added 1N hydrochloric acid (20 mL). A white crystal was formed, which was collected by filtration and washed with water and diisopropyl ether, and dried under vacuum. 4-({[(Benzyloxy)carbonyl]amino}sulfonyl)benzoic acid was obtained as a white crystal (2.92 g).
Workup
- customMethanol was evaporated off
- additionto the mixture was added 1N hydrochloric acid (20 mL)
- customA white crystal was formed
- filtrationwhich was collected by filtration
- washwashed with water and diisopropyl ether
- customdried under vacuum
Sources & evidence
- ORD record
- ord-19b9584d9c8340e582a20435db42069a
- Source dataset
- uspto-grants-2006_12
- Patent number
- US07153854B2
Reaction notes
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