N-(pyridine-2-yl)amides in water from ketones and 2-aminopyridine via direct oxidative C–C bond cleavage has been developed. A series of ketones, including more challenging inactive aromaticketones substituted with diverse long-chain alkyl groups, were selectively converted to N-(pyridine-2-yl)amides. Furthermore, the protocol can be applied to aryl alkyl carbinols to afford the corresponding amides in moderate
A mild and green methodology for the construction of N‐(pyridine‐2‐yl)amides from alkylarenes and 2‐aminopyridine in one step was developed. Various alkylarenes were directly transformed into the corresponding N‐(pyridine‐2‐yl)amides through tandem C(sp3)–H bond activation/oxidative cyclization/C–C bondcleavage.
A procedure for the synthesis of N-heteroaryl amides directly from oxidative amidation of aldehydes catalyzed by heteropolyanion-based ionic liquids has been reported. The proposed N-directing dual-catalysis mechanism was briefly investigated.
compounds showed broad‐spectrum antimycobacterial activity against M. tuberculosis H37Ra, M. smegmatis and M. aurum. N‐(pyridin‐2‐yl)benzamides were generally more active than N‐(pyridin‐3‐yl)benzamides, indicating that N‐1 in the parental structure of N‐pyrazinylbenzamides might be more important for antimycobacterial activity than N‐4. Marginal antibacterial and antifungal activity was observed for title
Transformation of aldehydes or alcohols to amides at room temperature under aqueous conditions
作者:Dao-Qing Dong、Shuang-Hong Hao、Hui Zhang、Zu-Li Wang
DOI:10.1016/j.cclet.2017.03.008
日期:2017.7
Abstract A novel and efficient method for the synthesis of amide has been developed. The reactions proceeded smoothly under aqueous conditions at room temperature and generated the corresponding products in good to excellent yields. It is worth noting that alkyl amines which did not react in known approaches are well tolerated in our system.