Heterogeneously catalysed Strecker-type reactions using supported Co(ii) catalysts: microwave vs. conventional heating
作者:Fatemeh Rajabi、Saghar Nourian、Sara Ghiassian、Alina M. Balu、Mohammad Reza Saidi、Juan Carlos Serrano-Ruiz、Rafael Luque
DOI:10.1039/c1gc15741h
日期:——
α-aminonitriles could be efficiently prepared from various aldehydes/ketones and primary or secondary amines using a highly active and stable Co(II) complex supported on different mesoporous supports at both room temperature and low temperature microwave irradiation undersolventlessconditions. Catalysts were also highly reusableunder the investigated reactionconditions and could be reused at least 10 times
Nafion–Fe: A New Efficient “Green” Lewis Acid Catalyst for the Ketonic Strecker Reaction
作者:G. K. Surya Prakash、Inessa Bychinskaya、Eric R. Marinez、Thomas Mathew、George A. Olah
DOI:10.1007/s10562-012-0958-2
日期:2013.4
yields and high purity by the Streckerreaction from ketones, aliphatic/aromatic amines and TMSCN using a new “green” Lewis acid catalyst, Nafion–Fe (iron Nafionate, Fe(III) salt of Nafion–H, a solid polymeric perfluoroalkanesulfonic acid) under conventional thermal as well as microwave conditions. Microwave and solvent-free conditions applied in this method shorten the reaction times, improve the yields
The present invention relates to compounds of formula (I), or to salts or solvates thereof, their use in the manufacture of medicaments for treating neurological and neuropsychiatric disorders, in particular psychoses, dementia or attention deficit disorder. The invention further comprises processes to make these compounds and pharmaceutical formulations thereof.