A novel protocol for the synthesis of α-aryl nitriles has been successfully achieved via a copper-catalyzed cyanation of N-tosylhydrazones employing thiocyanate as the source of cyanide. The features of this method include a convenient operation, readily available substrates, low-toxicity thiocyanate salts, and a broad substrate scope.
A metal-free protocol of direct C(sp3)–H cyanation with cyanobenziodoxolones functioning as both cyanating reagents and oxidants was developed. Unactivated substrates, such as alkanes, ethers and tertiary amines, were thereby transformed to the corresponding nitriles in moderate to high yields. Mechanistic studies indicated that the cyanation proceeded with two potential pathways, which is highly dependent
[EN] INDANE COMPOUNDS AS CCR5 ANTAGONISTS<br/>[FR] COMPOSES INDANE UTILISES COMME ANTAGONISTES DE CCR5
申请人:SMITHKLINE BEECHAM CORP
公开号:WO2004055012A1
公开(公告)日:2004-07-01
The present invention relates to compounds of formula (I), or pharmaceutically acceptable derivatives thereof, useful in the treatment of CCR5-related diseases and disorders, for example, useful in the inhibition of HIV replication, the prevention or treatment of an HIV infection, and in the treatment of the resulting acquired immune deficiency syndrome (AIDS).
Anti‐headache chemistry: In the presence of a tailored modular P,P ligand the nickel‐catalyzed addition of HCN, generated in situ from TMS‐CN, to styrene derivatives proceeds with an unprecedented level of stereocontrol (up to 97 % ee) to give 2‐aryl‐acetonitriles, for example, the depicted precursor of Ibuprofen.
[cyano, nitro, (non)enolizable ketone, chloride, and amide moieties] are allowed on methoxyarenes. Moreover, an array of alkanenitriles with/without an aryl moiety at the nitrile α-position can be employed. The system also features no requirement of a stoichiometric base, MeOH (not salt waste) formation as a byproduct, and the production of congested quaternary carbon centers.