Xanthene-2-acetic acid, 9-oxo- → Ethyl 9-oxo-9H-xanthene-2-acetate

HRID 726771Notes

Reaction equation

HRID 726771 reaction equation
[O:1]=[C:2]1[C:15]2[CH:14]=[C:13]([CH2:16][C:17]([OH:19])=[O:18])[CH:12]=[CH:11][C:10]=2[O:9][C:8]2[C:3]1=[CH:4][CH:5]=[CH:6][CH:7]=2.[C:20]([CH2:23]C1C=CC(OC2C=CC=CC=2C(O)=O)=CC=1)(O)=O>C(O)C>[O:1]=[C:2]1[C:15]2[CH:14]=[C:13]([CH2:16][C:17]([O:19][CH2:20][CH3:23])=[O:18])[CH:12]=[CH:11][C:10]=2[O:9][C:8]2[C:3]1=[CH:4][CH:5]=[CH:6][CH:7]=2

Participants

4

Reactant 2

HCID 207478Xanthene-2-acetic acid, 9-oxo-HCID 22107233HCID 22107233, compound

Product 1

HCID 12274127Ethyl 9-oxo-9H-xanthene-2-acetate

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

9-Oxo-9H-xanthene-2-acetic acid, melting point 226°-228° C., is prepared from 2-(4-carboxymethylphenoxy)benzoic acid (Example 10f) analogously to Example 10c and is reacted with ethanol to give ethyl 9-oxo-9H-xanthene-2-acetate, melting point 97°-98° C.

Sources & evidence

ORD record
ord-a06878a32cc843a59be35152e2bcde73
Source dataset
uspto-grants-1998_01
Patent number
US05710198

Reaction notes

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