dc.contributor.author |
Kumar, Dalip |
|
dc.date.accessioned |
2021-10-27T04:22:18Z |
|
dc.date.available |
2021-10-27T04:22:18Z |
|
dc.date.issued |
2006 |
|
dc.identifier.uri |
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwixwfay493zAhV7zTgGHZIiDdAQFnoECAQQAQ&url=https%3A%2F%2Fciteseerx.ist.psu.edu%2Fviewdoc%2Fdownload%3Fdoi%3D10.1.1.564.3857%26rep%3Drep1%26type%3Dpdf&usg=AOvVaw33V14eFgxhNiDutvY3sB7_ |
|
dc.identifier.uri |
http://dspace.bits-pilani.ac.in:8080/xmlui/handle/123456789/3076 |
|
dc.description.abstract |
Sulfated zirconia and phosphotungstic acid (PWA) have been used as catalysts for the
synthesis of some biologically potent 3,4-dihydropyrimidin-2(1H)-ones and aryl-14Hdibenzo[
a.j]xanthenes under solvent free conditions. Both the solid acid catalysts are
found to be active for the synthesized compounds under mild reaction conditions. The
3,4-dihydropyrimidin-2(1H)-ones were synthesized in a single step using multicomponent
condensation of aryl aldehyde, urea derivatives and β-dicarbonyl compounds
using PWA or sulfated zirconia as catalysts. The generality of this protocol has been
demonstrated by synthesizing a variety of functional dihydropyrimidin-2(1H)-ones in
excellent yield and short reaction time. Phosphotungstic acid has also been demonstrated
as an efficient catalyst for the condensation of aryl aldehydes and β-napthol to produce
aryl-14H-dibenzo[a.j]xanthenes under solvent-free conditions. The reaction is found to
proceed quickly in presence of catalytic amount of phosphotungstic acid and brief
exposure to microwave to afford the products in good yield. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
BCSI |
en_US |
dc.subject |
Chemistry |
en_US |
dc.subject |
Sulfated Zirconia-catalyzed |
en_US |
dc.subject |
Phosphotungstic acid catalyzed |
en_US |
dc.subject |
Synthesis |
en_US |
dc.title |
Sulfated zirconia and phosphotungstic acid catalyzed synthesis of some biologically potent heterocyclic compounds |
en_US |
dc.type |
Article |
en_US |