Exploring Rhodium(I) Complexes [RhCl(COD)(PR3)] (COD = 1,5-Cyclooctadiene) as Catalysts for Nitrile Hydration Reactions in Water: The Aminophosphines Make the Difference
摘要:
Several rhodium(I) complexes, [RhCl(COD)-(PR3)], containing potentially cooperative phosphine ligands, have been synthesized and evaluated as catalysts for the selective hydration of organonitriles into amides in water. Among the different phosphines screened, those of general composition P(NR2)(3) led to the best results. In particular, complex [RhCl(COD){P(NMe2)(3)}] was able to promote the selective hydration of a large range of nitriles in water without the assistance of any additive, showing a particularly high activity with heteroaromatic and heteroaliphatic substrates. Employing this catalyst, the antiepileptic drug rufinamide was synthesized in high yield by hydration of 4-cyano-1-(2,6-difluorobenzyl)-1H-1,2,3-triazole. For this particular transformation, complex [RhCl(COD){P(NMe2)(3)}] resulted more effective than related ruthenium catalysts.
The present invention provides certain sulfonamide derivatives of formula (I) (in which the variables are as defined in the claims) useful for potentiating glutamate receptor function in a patient and therefore useful for treating a wide variety of conditions, such as psychiatric and neurological disorders.
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[EN] SULFONAMIDE DERIVATIVES<br/>[FR] DERIVES DE SULFONAMIDE
申请人:LILLY CO ELI
公开号:WO2002098846A1
公开(公告)日:2002-12-12
The present invention provides certain sulfonamide derivatives of formula (I) (in which the variables are as defined in the claims) useful for potentiating glutamate receptor function in a patient and therefore useful for treating a wide variety of conditions, such as psychiatric and neurological disorders.