94083-16-6

Upstream product

• 32314-49-1 1,4-epidioxy-1,4-dimethyl-9,10-diphenyl-1,2,3,4-tetrahydroanthracene 
• 94083-15-5 5a,8-dimethyl-9-phenyl-5a,6,7,8-tetrahydronaphtho<3,2,1-k,l>xanthene-8-ol 
• 20153-17-7 1,4-dimethyl-9,10-diphenylanthracene 1,4-endoperoxide 

Downstream Products

• 94083-20-2 dimethyl-1,4 o.hydroxyphenyl-9 phenyl-10 anthracene 

Relevant academic research and scientific papers

Chemical syntheses of syn- and anti-1,2;3,4-diepoxides derived from 1,4-dimethyl-and 1,2,3,4-tetramethylanthracenes and naphthalenes

Chemical isomerization of 1,4-endoperoxides 1a,b,n derived from meso-unsubstituted 1,4-dimethyl- or 1,2,3,4-tetramethylanthracenes (and naphthalenes) to syn-1,2;3,4-diepoxides 2a,b,n has been achieved by treatment at room temperature with FeSO4 in CH3CN containing pyridine. With analogous 9,10-diphenyl derivatives 1c,d, heating appears necessary and the same isomerization is then superseded by another type of rearrangement leading to dihydronaphthoxanthenols 4c,d. An electron-exchange mechanism may explain the difference between both series. In contrast, the isomeric anti-1,2;3,4-diepoxides 19b,c,d,n have been prepared by direct epoxidation of the hydrocarbons 18a-d,n with dimethyldioxirane generated in situ. In this case, the reaction is more efficient for 9,10-diphenyl derivatives 18c,d than for meso-unsubstituted ones 18a,b as the latter can undergo competitive oxidations at meso-positions leading to 10-hydroxy-9-anthrones 22a,b at the same time as anthraquinones 23a,b. Elsevier.

Transformations photochimiques d'endoperoxydes derives d'hydrocarbures aromatiques polycycliques IV. Effet de phenyles en peri sur la photo-isomerisation des endoperoxydes-1,4 tetrahydroaromatiques

Photolysis in benzene at long wavelengths of 1,4-epidioxy-1,4-dimethyl-9,10-diphenyl-1,2,3,4-tetrahydroanthracene 1a affords essentially two products: 2,5-epoxy-2,5-dimethyl-6,11-diphenyl-2,3,4,5-tetrahydronaphthooxepine 8a and 5a,8-dimethyl-9-phen