HCID 10869521, compound → HCID 10890172, compound
Reaction equation
[OH:1][CH2:2][CH2:3][S:4]([C:7]1[CH:8]=[CH:9][C:10]([N+:16]([O-])=O)=[C:11]([CH:15]=1)[C:12]([OH:14])=[O:13])(=[O:6])=[O:5]>[Pd]>[OH:1][CH2:2][CH2:3][S:4]([C:7]1[CH:15]=[C:11]([C:12]([OH:14])=[O:13])[C:10]([NH2:16])=[CH:9][CH:8]=1)(=[O:6])=[O:5]Participants
3
Reactant 1
Product 1
Reagents, catalysts & solvents 1
Procedure
The procedures of Examples 17 and 18 are repeated, except that in each case 137.5 parts of 5-hydroxyethylsulfonyl-2-nitrobenzoic acid and also the aqueous mother liquor and the Pd catalyst of the previous batch are used, to give in each case about 122 parts of 5-hydroxyethylsulfonylanthranilic acid of melting point 164° to 166° C. and a purity (diazotization) of >99%, that is, mother liquor and catalyst can each be used at least 10 times without deterioration of the product or decrease in yield.
Sources & evidence
- ORD record
- ord-e65d27e09aa640f8bdef87db34166193
- Source dataset
- uspto-grants-1990_10
- Patent number
- US04960929
Reaction notes
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