7239-97-6

Basic information

• Product Name: dimethyl 2,3-diphenoxybutanedioate
• Synonyms: Morphinan-8,14-diol,6,7-didehydro-4,5-epoxy-3-methoxy-17-methyl-, 8-acetate, (5a,8a)- (9CI)
• CAS NO: 7239-97-6
• Molecular Formula: C₂₀H₂₃NO₅
• Molecular Weight: 330.3319
• Mol File: 7239-97-6.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 456.9°C at 760 mmHg
• Flash Point: 200.9°C
• Density: 1.214g/cm³
• Vapor Pressure: 1.56E-08mmHg at 25°C
• Refractive Index: 1.543
• CAS DataBase Reference: dimethyl 2,3-diphenoxybutanedioate(CAS DataBase Reference)
• NIST Chemistry Reference: dimethyl 2,3-diphenoxybutanedioate(7239-97-6)
• EPA Substance Registry System: dimethyl 2,3-diphenoxybutanedioate(7239-97-6)

Safety Data

• Hazardous Substances Data: 7239-97-6(Hazardous Substances Data)

Upstream product

• 100740-63-4 6α-acetoxy-4,5α-epoxy-3-methoxy-17-methyl-morphin-7-en-14-ol 
• 103458-67-9 14-hydroxycodeine diacatate 
• 4829-46-3 14-hydroxycodeine 
• 508-54-3 14-hydroxycodeinone 
• 73294-93-6 6-demethoxythebaine 
• 24184-31-4 3-methoxy-4,5α,8β,14β-diepoxy-6,7-didehydro-17-methylmorphinan 
• 64-19-7 acetic acid 
• 24222-66-0 4,5α-epoxy-3-methoxy-17-methyl-6α-(toluene-4-sulfonyloxy)-morphin-7-en-14-ol 

Downstream Products

• 94713-16-3 4,5α-epoxy-3-methoxy-17-methyl-(14ξ)-morphin-6-en-8-one 

Relevant articles and documents

MORPHINE ALKALOIDS, 104. SYNTHESIS AND CONVERSIONS OF NEW EPOXY DERIVATIVES

For the preparation of morphine alkaloids with multisubstituted ring C, new starting materials (6-demethoxythebaine, 6-chloro(bromo)-6-demethoxythebaine, 7-chloro(bromo)-6-demethoxythebaine and N-demethyl-N-cyclopropylcarbonyl-6-demethoxythebaine) were utilized to synthesize new 8β,14β-epoxy derivatives.Conversions of the epoxides (with 70 percent acetic acid and with sodium azide in aqueous dioxane, respectively) have also been investigated, and the azido derivatives obtained were reduced to amines. In the course of these studies new compounds having two or three substituents in ring C have been prepared.