Mesoporous silica MCM-41 as a highly active, recoverable and reusable catalyst for direct amidation of fatty acids and long-chain amines
作者:Kenichi Komura、Yu Nakano、Mamoru Koketsu
DOI:10.1039/c0gc00673d
日期:——
Direct amidation of fattyacids with long-chain amines was successfully performed by mesoporous silica MCM-41, which showed the highest catalytic activity among other used homo- and heterogeneous catalysts. It was found that MCM-41 can be easily recovered from the reaction mixture followed by simple calcination treatment and reused without loss of its catalytic activity.
A catalyst system for the formation of amides by reaction of carboxylic acids with blocked isocyanates
作者:R. Gertzmann、C. Gürtler
DOI:10.1016/j.tetlet.2005.07.156
日期:2005.9
A catalyst for the reaction of blocked isocyanates (blocking agent diisopropylamine and dimethyl pyrazole) and carboxylic acids was identified. Magnesium and in some instances calcium salts proved to be highly active as catalyst. This reaction gives amides in quantitative yield and excellent selectivity and is suitable for coating and general chemical purposes.
The present invention describes compounds deriving from chemical reactions between saturated or monounsaturated acyl derivatives and primary amines or primary alcohols that display specific cannabinoid-like pharmacological activity without exhibiting the central unwanted side effects typical of synthetic cannabinoids or endocannabinoids acting on central cannabinoid (CB1) receptors. These compounds, having this pharmacological activity, may be utilised to prevent or to treat pathological conditions and diseases in mammals, including human subjects, that may undergo a clinical improvement upon their administration.