Metal modified SSA as a heterogeneous catalyst to promote the cyclocondesation of o-aminobenzonitriles with cycloketones in water
摘要:
A novel solid catalyst based on silica sulfuric acid (SSA) was prepared. When SSA was treated with Lewis acids, metal ions can be easily immobilized on silica surface, which results in strengthening Lewis acidity. The novel solid catalyst was demonstrated to be efficient in promoting the cyclocondesation of o-aminobenzonitriles with cycloketones in water, and hence promising in the application of pharmaceutical study and production. (C) 2013 Elsevier Ltd. All rights reserved.
Neue Alkin-Verbindungen mit MCH-antagonistischer Wirkung und diese Verbindungen enthaltende Arzneimittel
申请人:Boehringer Ingelheim Pharma GmbH & Co. KG
公开号:EP2357173A1
公开(公告)日:2011-08-17
Die vorliegende Erfindung betrifft Alkin-Verbindungen der allgemeinen Formel I
in der die Gruppen und Reste A, B, W, X, Y, Z, R1 und R2 die in Anspruch 1 angegebenen Bedeutungen aufweisen. Ferner betrifft die Erfindung Arzneimittel enthaltend mindestens ein erfindungsgemäßes Alkin. Auf Grund der MCH-Rezeptor antagonistischen Aktivität eignen sich die erfindungsgemäßen Arzneimittel zur Behandlung von metabolischen Störungen und/oder Essstörungen, insbesondere von Obesitas, Bulimie, Anorexie, Hyperphagia und Diabetes.
Metal modified SSA as a heterogeneous catalyst to promote the cyclocondesation of o-aminobenzonitriles with cycloketones in water
作者:Li Jun Zhang、Jian Ling Yu、Wei Li Wang、Heng Li、Dan Dan Xu、Ya Dong Bi、Fu De Liu
DOI:10.1016/j.tetlet.2013.12.001
日期:2014.1
A novel solid catalyst based on silica sulfuric acid (SSA) was prepared. When SSA was treated with Lewis acids, metal ions can be easily immobilized on silica surface, which results in strengthening Lewis acidity. The novel solid catalyst was demonstrated to be efficient in promoting the cyclocondesation of o-aminobenzonitriles with cycloketones in water, and hence promising in the application of pharmaceutical study and production. (C) 2013 Elsevier Ltd. All rights reserved.