21793-91-9

Basic information

• Product Name: 6,8-dimethoxy-1,2,3a,12c-tetrahydrofuro[2,3-c]furoxanth-7-one
• CAS NO: 21793-91-9
• Molecular Weight: 340.332
• Mol File: 21793-91-9.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 6,8-dimethoxy-1,2,3a,12c-tetrahydrofuro[2,3-c]furoxanth-7-one(CAS DataBase Reference)
• NIST Chemistry Reference: 6,8-dimethoxy-1,2,3a,12c-tetrahydrofuro[2,3-c]furoxanth-7-one(21793-91-9)
• EPA Substance Registry System: 6,8-dimethoxy-1,2,3a,12c-tetrahydrofuro[2,3-c]furoxanth-7-one(21793-91-9)

Safety Data

• Hazardous Substances Data: 21793-91-9(Hazardous Substances Data)

Upstream product

• 10048-13-2 sterigmatocystin 
• 6795-16-0 dihydrosterigmatocystin 
• 77-78-1 dimethyl sulfate 
• 129103-85-1 2-Fluoro-6-methoxy-benzoic acid (3aS,8aR)-5-iodo-6-methoxy-2,3,3a,8a-tetrahydro-benzo[b]furo[3,2-d]furan-4-yl ester 
• 500912-12-9 2-fluoro-6-methoxybenzoyl chloride 
• 137654-21-8 2-fluoro-6-methoxybenzoic acid 
• 94088-46-7 2-fluoro-6-methoxybenzonitrile 
• 129103-96-4 (2-Fluoro-6-methoxy-phenyl)-((3aS,8aR)-4-hydroxy-6-methoxy-2,3,3a,8a-tetrahydro-benzo[b]furo[3,2-d]furan-5-yl)-methanone 

Relevant articles and documents

A Complex Induced Proximity Effect in the Anionic Fries Rearrangement of o-Iodophenyl Benzoates: Synthesis of Dihydro-O-methylsterigmatocystin and Other Xanthones

The success of an anionic Fries rearrangement, used to synthesise dihydro-O-methylsterigmatocystin and other xanthones, is dependent on the presence of a remote methoxyl substituent.