Organocatalytic activity of the new guanidine derivatives (CROSBI ID 596291)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | domaća recenzija
Podaci o odgovornosti
Glasovac, Zoran ; Racar, Marko ; Briš, Anamarija ; Margetić, Davor ; Eckert-Maksić, Mirjana
engleski
Organocatalytic activity of the new guanidine derivatives
Guanidines have been widely recognized as powerful organocatalysts in a variety of organic reactions.[1] This was attributed to their high intrinsic basicity[1, 2] and affinity to form hydrogen bonds with various functional groups.[3] We have recently shown that the presence of dimethylamino subunit within the side chains can increase the basicity in both gas-phase and solution.[4, 5] Similar effect on the basicity is also expected when other powerful proton accepting groups are included in the structure. Here we report on the synthesis of novel guanidine derivatives with either pyridine or carbonyl containing subunit (amido or ester group) within at least one alkyl side chain. Organocatalytic activity of the newly prepared compounds was tested in Knoevenagel reaction and in transesterification of the sunflower oil with methanol. Their activity was compared to the results obtained by using recently synthetized dimethylaminopropyl substituted guanidines [5] and selected commercially available amines and guanidines often used as catalysts in the same type of reactions.
guanidines; organocatalytic activity; Knoevenagel reaction; transesterification
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Podaci o prilogu
163-163.
2013.
objavljeno
Podaci o matičnoj publikaciji
XXIII Hrvatski skup kemičara i kemijskih inženjera, Knjiga sažetaka
Hadžiev, Andrea ; Blažeković, Zdenko
Zagreb: Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI) ; Hrvatsko kemijsko drustvo
978-953-6894-50-5
Podaci o skupu
XXIII. Hrvatski skup kemičara i kemijskih inženjera
poster
21.04.2013-24.04.2013
Zagreb, Hrvatska