869946-79-2Relevant academic research and scientific papers
Enhanced Hydride Donation Achieved Molybdenum Catalyzed Direct N-Alkylation of Anilines or Nitroarenes with Alcohols: From Computational Design to Experiment
Huang, Ming,Huang, Yong-Liang,Ke, Zhuofeng,Lan, Xiao-Bing,Li, Weikang,Liu, Jiahao,Liu, Yan,Ye, Zongren,Zhao, Cunyuan
, p. 10377 - 10382 (2021/08/31)
An example of homogeneous Mo-catalyzed direct N-alkylation of anilines or nitroarenes with alcohols is presented. The DFT aimed design suggested the easily accessible bis-NHC-Mo(0) complex features a strong hydride-donating ability, achieving effective N-alkylation of anilines or challenging nitroarenes with alcohols. The enhanced hydride-donating strategy should be useful in designing highly active systems for borrowing hydrogen transformations.
Ag nanoparticles on mixed Al2O3-Ga2O 3 supports as catalysts for the N-alkylation of amines with alcohols
Geukens, Inge,Vermoortele, Frederik,Meledina, Maria,Turner, Stuart,Van Tendeloo, Gustaaf,De Vos, Dirk E.
, p. 373 - 379 (2013/11/19)
The combination of AgNO3 with NaH results in Ag nanoparticles that can selectively perform alcohol aminations under mild reaction conditions (110 C). NaH not only serves as a reducing agent for the Ag salt, but also activates the alcohol for dehydrogenation to the corresponding ketone/aldehyde. The stability of the particles can be improved by immobilizing them onto mixed Al2O3-Ga2O3 supports; the combination of Ga and Al provides materials with stronger Lewis acidic sites compared to pure alumina or gallium oxide supports. This leads to catalysts with enhanced activities, without the necessity of adding external Lewis acids. Detailed TEM characterization also reveals a close interaction between the Ag NPs and the gallium oxide phase. The obtained catalysts are recyclable and show activity for the alcohol amination using a variety of aliphatic and aromatic amines under mild conditions.
C5A RECEPTOR ANTAGONISTS
-
Page/Page column 106-107; 115, (2008/06/13)
The present invention is related to a compound, preferably a C5a receptor antagonist, having the following structure, Rl, R2, R3, R4, R5, R6, R7, R8, R9, Rl0, RI l, R12, R13, R14, R15, R16, Rl7, R18, Rl9, R20, R21 and R22 are individually and independently selected from the group comprising H, alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, cycloalkyl, substituted cycloalkyl, heterocyclyl, substituted heterocyclyl, aryl, substituted aryl, heteroaryl, substituted heteroaryl, arylalkyl, substituted arylalkyl, heteroarylalkyl, substituted heteroarylalkyl, alkoxyl, substituted alkoxyl, aryloxy, substituted aryloxy, arylalkyloxy, substituted arylalkyloxy, acyloxy, substituted acyloxy, halogen, hydroxyl, nitro, cyano, acyl, substituted acyl, mercapto, alkylthio, substituted alkylthio, amino, substituted amino, alkylamino, substituted alkylamino, bisalkyl amino, substituted bisalkyl amino, cyclic amino, substituted cyclic amino, carbamoyl (-CONH2), substituted carbamoyl, carboxyl, carbamate, alkoxycarbonyl, substituted alkoxycarbonyl, acylamino, substituted acylamino, sulfamoyl (-SO2NH2), substituted sulfamoyl, haloalkyl, haloalkyloxy, -C(O)H, trialkylsilyl and azido.
