The thermolysis of aryl desyl ethers. Formation of furan derivatives

• Autorzy: Gaber A. E.-A. M.
• Języki publikacji: EN

Abstrakty

EN

Thermal reactions of aryl desyl ethers PhCOCH(OAr)Ph (Ar = Ph, p-tolyl) 1, 2 gave 2,3-diphenylbenzo(b)furan 5a,b and phenols as major products in addition to small amounts of toluene, benzil, benzoic acid, benzophenone, arylbenzoate, p-benzylphenol, 2,3,4,5-tetraphenylfuran 4 and 2,3-diphenylbenzo (l,4) dioxin 6a,b. In the presence of isoquinoline as a radical trap, 1 gave 1-phenylisoquinoline beside the previous products. Analogous results, in addition to diphenylmethane and benzophenone as major products as well as 1,1,2,2-tetraphenyl ethane and dibenzhydryl ether as minor products, were also obtained on heating the benzhydryl desyl ether 3. A free radical mechanism has been postulated to take place through the initial homolysis of the C-OAr bond to account for the identified products.

Słowa kluczowe

EN

thermolysis; aryl; ethers; furan

• Wydawca: Centrum Upowszechniania Nauki PAN
• Czasopismo: Bulletin of the Polish Academy of Sciences. Chemistry
• Rocznik: 1998
• Tom: Vol. 46, No. 2
• Strony: 185--193
• Opis fizyczny: Bibliogr. 25 poz.

Twórcy

autor

Gaber A. E.-A. M.

• Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt