TBAI/TBHP mediatedoxidativecrosscoupling of phenols and carboxylic acids with ketones has been reported under metal-free, base free, solvent free conditions enabling environmentally benign synthesis of aryloxyketones, acyloxy ketones and benzofurans. Phenoxyketones and acyloxylcarbonyl compounds were synthesized in good to high yields, where as benzofurans were synthesized in moderate yields. This
ETHER DERIVATIVES USEFUL AS INHIBITORS OF PDE4 ISOZYMES
申请人:Marfat Anthony
公开号:US20070161681A1
公开(公告)日:2007-07-12
Compounds useful as inhibitors of PDE4 in the treatment of diseases regulated by the activation and degranulation of eosinophils, especially asthma, chronic bronchitis, and chronic obstructive pulmonary disease, of the formula:
wherein the substituents are as defined in the specification.