Direct oxidative amidation of aldehydes with amines catalyzed by heteropolyanion-based ionic liquids under solvent-free conditions via a dual-catalysis process
A simple and efficient procedure for the synthesis of amides directly from aldehydes and amines catalyzed by heteropolyanion-based ionic liquids undersolvent-freeconditions has been reported. The practical protocol was found to tolerate a wide range of substrates with different functional groups. Moderate to excellent yields, solvent-free media, and operational simplicity are the main highlights
An efficient, eco-friendly and sustainable tandem oxidative amidation of alcohols with amines catalyzed by heteropolyanion-based ionic liquids via a bifunctional catalysis process
eco-friendly and sustainable method for the tandem oxidative amidation of alcohols with amines has been reported. Using heteropolyanion-based ionic liquids as the catalyst and tert-butyl hydroperoxide as the oxidant, this amidation reaction is operationally straightforward and provides a series of primary, secondary and tertiary amidesderivatives in moderate to good yields. Solvent-free media, microwave-promoted
This application discloses novel cyanoguanidines of the formula (I) wherein A is selected from -C(=O)-, -S(=O)2-, -C(=S)-, and -P(=O)(R5)-, wherein R5 is selected from C1-6-alkyl, C1-6-alkoxy, and hydroxy; B is selected from a single bond, -O-, -NR6- and -C(=O)-NR6-, wherein R6 is selected from hydrogen, optionally substituted C1-12-alkyl, optionally substituted C1-12-alkenyl, optionally substituted aryl, optionally substituted heterocyclyl, and optionally substituted heteroaryl; and m is an integer of 0-12 and n is an integer of 0-12, wherein the sum m+n is 1-20; and R1 is selected from optionally substituted heteroaryl; and pharmaceutically acceptable salts thereof, and prodrugs thereof. The compounds are usefuld for use as a medicament for the treatment of a disease or a condition caused by an elevated level of nicotinamide phosphoribosyltransferase (NAMPRT).
This invention is directed to compounds and salts that are generally useful as anthelmintic agents or as intermediates in processes for making anthelmintic agents. This invention also is directed to processes for making the compounds and salts, pharmaceutical compositions and kits comprising the compounds and salts, uses of the compounds and salts to make medicaments, and treatments comprising the administration of the compounds and salts to animals in need of the treatments.
Solid-Supported Chloro[1,3,5]triazine. A Versatile New Synthetic Auxiliary for the Synthesis of Amide Libraries
作者:Simonetta Masala、Maurizio Taddei
DOI:10.1021/ol990215h
日期:1999.11.1
[GRAPHICS]2,4,6-Trichloro[1,3,5]triazine was loaded on different types of NH2-functional resins to give a new supported reagent. The best results, in term of yields products, were obtained using the chlorotriazine linked to a polystyrene-poly(ethylene glycol) resin. This reagent was employed for the solution-phase synthesis of different amides and dipeptides.