2172-91-0Relevant academic research and scientific papers
An improved synthesis of dibenzofurans by a free-radical cyclization
Wassmundt,Pedemonte
, p. 4991 - 4994 (2007/10/03)
Reaction conditions for the formation of dibenzofurans from diazotized o-(aryloxy)anilines have been examined. Several promoters (hydroquinone, SnCl2, NaI, CuSO4, FeSO4, etc.) have been discovered; these act as electron donors and promote a free-radical mechanism. The best of these is FeSO4 which shortens the reaction time from hours to minutes and contributes to high yields (77-83%). We have been able to transform the cyclization to a reliable and convenient synthesis.
1-,2-,3-,4-,5-,6-,7-,8- AND/OR 9 SUBSTITUTED DIBENZOXAZEPINE COMPOUDS, PHARMACEUTICAL COMPOSITIONS AND METHODS FOR TREATING PAIN
-
, (2008/06/13)
The present invention provides substituted dibenzoxazepine compounds of Formula I: STR1 which are useful as analgesic agents for the treatment of pain, pharmaceutical compositions comprising a therapeutically-effective amount of a compound of Formula I in combination with a pharmaceutically-acceptable carrier, and a method for eliminating or ameliorating pain in an animal comprising administering a therapeutically-effective amount of a compound of Formula I to the animal.
