42896-18-4

Basic information

• Product Name: 4b,10a-Dihydrobenzo[b]benzo[3,4]cyclobuta[1,2-e][1,4]dioxin
• Synonyms: 4b,10a-Dihydrobenzo[b]benzo[3,4]cyclobuta[1,2-e][1,4]dioxin
• CAS NO: 42896-18-4
• Molecular Formula: C₁₄H₁₀O₂
• Molecular Weight: 210.228
• Mol File: 42896-18-4.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 348.2°Cat760mmHg
• Flash Point: 169.6°C
• Appearance: /
• Density: 1.276g/cm³
• Vapor Pressure: 0.000103mmHg at 25°C
• Refractive Index: 1.644
• CAS DataBase Reference: 4b,10a-Dihydrobenzo[b]benzo[3,4]cyclobuta[1,2-e][1,4]dioxin(CAS DataBase Reference)
• NIST Chemistry Reference: 4b,10a-Dihydrobenzo[b]benzo[3,4]cyclobuta[1,2-e][1,4]dioxin(42896-18-4)
• EPA Substance Registry System: 4b,10a-Dihydrobenzo[b]benzo[3,4]cyclobuta[1,2-e][1,4]dioxin(42896-18-4)

Safety Data

• Hazardous Substances Data: 42896-18-4(Hazardous Substances Data)

Usage

InChI:InChI=1/C14H10O2/c1-2-6-10-9(5-1)13-14(10)16-12-8-4-3-7-11(12)15-13/h1-8,13-14H

Upstream product

• 4741-24-6 9,10-epidioxy-9,10-dihydroanthracene 

Relevant articles and documents

Transformations photochimiques d'endoperoxydes derives d'hydrocarbures aromatiques polycycliques II. Cas de l'endoperoxyde d'anthracene: di- et tetraepoxydes derives

Syn 4a,10:9,9a-diepoxy-4a,9,9a,10-tetrahydroanthracene 10, an intermediate in the thermal transformations of 9,10-epidioxyanthracene 5a, can be prepared by photolysis of 5a in benzene at long wavelengths (λ >/= 435 nm) and at low temperature.Its chemical behaviour has been studied.In particular, diepoxide 10 appears to be very sensitive to acids and is isomerized by ZnCl2 into a bicyclic acetal: 6,11-epoxy-6,11-dihydrodibenzooxepine 20.Acetal 20 is itself isomerized by CF3CO2H into the unstable 1-(2-hydroxyphenyl)-isobenzofuran 32, which can be trapped by N-methylmaleimide as endo (33) and exo (35) adducts.Photo-oxygenation of die 10 leads to the 1,4-epidioxy-4a,10:9,9a-diepoxy-1,4,4a,9,9a,10-hexahydroanthracenes, syn 25 and anti 26, which by thermal or photochemical isomerization give the 1,2:3,4:4a,10:9,9a-tetraepoxy-1,2,3,4,4a,9,9a,10-octahydroanthracenes syn 27 and anti 28.The stereochemistry of these new compounds has been deduced from 1H NMR spectra.