A novel ruthenium-catalyzed cyclization of ketoxime carboxylates with N,N-dimethylformamide (DMF) for the synthesis of tetrasubstituted symmetrical pyridines has been developed. A methyl carbon on DMF performed as a source of a one carbon synthon. And NaHSO3 plays a role in the reaction.

No abstract

A one‐pot three‐component reaction of aldehydes, nitroalkanes and NaN3 for the synthesis of NH‐1,2,3‐triazoles has been developed. The reaction provides a safe, efficient and step‐economic approach for the synthesis of various NH‐1,2,3‐triazoles in good to excellent yields.