39500-13-5

Basic information

• Product Name: 4,4'-Diacetoxy-3,5-dimethoxybibenzyl
• CAS NO: 39500-13-5
• Molecular Weight: 358.391
• Mol File: 39500-13-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4,4'-Diacetoxy-3,5-dimethoxybibenzyl(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4'-Diacetoxy-3,5-dimethoxybibenzyl(39500-13-5)
• EPA Substance Registry System: 4,4'-Diacetoxy-3,5-dimethoxybibenzyl(39500-13-5)

Safety Data

• Hazardous Substances Data: 39500-13-5(Hazardous Substances Data)

Upstream product

• 39499-96-2 4,4′-dihydroxy-3,5-dimethoxybibenzyl 
• 108-24-7 acetic anhydride 
• 4385-56-2 2-(4-hydroxy-3,5-dimethoxyphenyl)acetic acid 
• 123-08-0 4-hydroxy-benzaldehyde 

Relevant articles and documents

Stilbenoids and flavonoids from the orchids Coelogyne uniflora, Ione paleacea and Acrochoene punctata

The orchid Coelogyne uniflora afforded earlier a steroidal ester, uniflorin. Further investigation of this orchid has now resulted in the isolation of two new phenanthropyrone derivatives, unifloranthrone and uniflorinanthrone, besides flavidin (1a), flavidinin (1c), isoflvidinin (1d) and oxoflavidin (1e). The structures of unifloranthrone and uniflorinanthrone were established as 2,7-dihydroxy-5H-phenanthro[4,5-bcd]pyran-5-one (2a) and 2,7-dimethoxy-5H-phenanthro[4,5-bcd]pyran-5-one (2c), respectively, from spectral and chemical evidence. Chemical investigation of the orchid Ione paleacea yielded two flavanone derivatives, 5,7-dihydroxy-6-methoxy-2-phenyl-2,3-dihydro-4H-1-benzopyran-4-one (3a) and 5,7-dihydroxy-6-methoxy-2-(4′-hydroxyphenyl)-2, 3-dihydro-4H-1-benzopyran-4-one (3c), besides the known stilbenoids, 3-hydroxy-5-methoxybibenzyl (4a), batatasin-III (4c) and gigantol (4e). The orchid Acrochoene punctata afforded two known bibenzyl derivatives, viz. 3,4′-dihydroxy-5-methoxybibenzyl (4f) and 4,4′ -dihydroxy-3,5-dimethoxybibenzyl (4g). Additional NMR spectral evidence was provided for further confirmation of the structures of 3a, 3c, 4a and 4g.