Compound Q&A
How is 3',6'-Diacetoxy-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-6-carboxylic acid (CAS: 3348-03-6) typically synthesized?
Answer
![3',6'-Diacetoxy-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-6-carboxylic acid](https://static.chemtradehub.com/structs/334/3348-03-6-66b7.webp "3',6'-Diacetoxy-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-6-carboxylic acid")
3',6'-Diacetoxy-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-6-carboxylic acid is typically synthesized via a multi-step process involving acetoxylation of 2-benzofuran and subsequent spirocyclization with xanthene derivatives. The reaction is usually carried out under anhydrous conditions with a Lewis acid catalyst like aluminum chloride to achieve high selectivity and yield.
About
CAS No
3348-03-6
English Name
3',6'-Diacetoxy-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-6-carboxylic acid
Molecular Formula
C25H16O9
Molecular Weight
460.39 g/mol
SMILES
CC(=O)OC1=CC2=C(C=C1)C3(C4=C(O2)C=C(C=C4)OC(=O)C)C5=C(C=CC(=C5)C(=O)O)C(=O)O3
InChIKey
QMOGCCYGOPYYNT-UHFFFAOYSA-N
Last Updated: 2025-10-19 13:36
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