3-Amino-4-hydroxybenzenesulfonic acid → HCID 20292504, compound

HRID 1413549Notes

Reaction equation

HRID 1413549 reaction equation
[N:1]1([C:6]2[CH:16]=[CH:15][C:9]([C:10](OCC)=O)=[CH:8][CH:7]=2)[CH2:5][CH2:4][CH2:3][CH2:2]1.[CH:17]1[C:22]([S:23]([OH:26])(=[O:25])=[O:24])=[CH:21][C:20]([NH2:27])=[C:19]([OH:28])[CH:18]=1>>[N:1]1([C:6]2[CH:16]=[CH:15][C:9]([C:10]3[O:28][C:19]4[CH:18]=[CH:17][C:22]([S:23]([OH:26])(=[O:24])=[O:25])=[CH:21][C:20]=4[N:27]=3)=[CH:8][CH:7]=2)[CH2:2][CH2:3][CH2:4][CH2:5]1

Participants

3

Reactant 2

HCID 73853-Amino-4-hydroxybenzenesulfonic acidHCID 773371Ethyl 4-(pyrrolidin-1-yl)benzoate

Product 1

HCID 20292504HCID 20292504, compound

Procedure

In accordance with the procedure of Example 1, 10.0 g of ethyl 4-pyrrolidinobenzoate were reacted with 8.7 g of 2-aminophenol-4-sulfonic acid to yield 2-(p-pyrrolidinophenyl)-benzoxazole-5-sulfonic acid, melting point 310° (with decomposition).

Sources & evidence

ORD record
ord-18708b18689843bf988f045cbb7b70f6
Source dataset
uspto-grants-1981_02
Patent number
US04250315

Reaction notes

Loading…