Add to ORKGA simple one-pot synthesis of various tetrahydro pyrimidines in the presence of NaY zeolite, as an efficient catalyst, is reported. The multicomponent reaction was carried out by a three-component coupling of 1,3-diketone, aldehyde and urea/thiourea in the presence of the catalyst to give 1(a-k). The catalyst could be reused several times. Further reaction of these pyrimidines with phosphorus oxychloride gave corresponding N-formylated compounds
A l’heure actuelle, la réduction de l’impact environnemental de l’industrie chimique est un enjeu ma...
A l’heure actuelle, la réduction de l’impact environnemental de l’industrie chimique est un enjeu ma...
Hierarchical ZSM-5 zeolite is hydrothermally synthesized in a single step with cetyltrimethylammoniu...
Copyright © 2013 A. M. Elmaghraby et al. This is an open access article distributed under the Creati...
An efficient and simple protocol has been developed for the synthesis of 3,4-dihydropyrimidin-2-(1H)...
Graduation date: 1966Since many 1, 4, 5, 6-tetrahydropyrimidines have become available\ud and commer...
The majority of the drugs on the market today are entirely chemically synthesized in the laboratory....
The majority of the drugs on the market today are entirely chemically synthesized in the laboratory....
Objective: The present work deals with the synthesis of tetrasubstituted imidazoles using environmen...
A series of tri- and tetra- substituted imidazoles were synthesized from benzyl, aldehyde and ammoni...
We have developed lucid protocol for the synthesis of 5- substituted 1H-tetrazole derivatives under ...
Zeolites have been used as an excellent and highly efficient catalyst for one-pot synthesis of amido...
As heterocyclic nitrogen molecules, tetrahydropyridines have been recognized as significant constitu...
ZnO-NPs as an efficient reusable heterogeneous catalyst for synthesis of 1,4-Dihydropyrimidine deriv...
ZnO-NPs as an efficient reusable heterogeneous catalyst for synthesis of 1,4-Dihydropyrimidine deriv...
A l’heure actuelle, la réduction de l’impact environnemental de l’industrie chimique est un enjeu ma...
A l’heure actuelle, la réduction de l’impact environnemental de l’industrie chimique est un enjeu ma...
Hierarchical ZSM-5 zeolite is hydrothermally synthesized in a single step with cetyltrimethylammoniu...
Copyright © 2013 A. M. Elmaghraby et al. This is an open access article distributed under the Creati...
An efficient and simple protocol has been developed for the synthesis of 3,4-dihydropyrimidin-2-(1H)...
Graduation date: 1966Since many 1, 4, 5, 6-tetrahydropyrimidines have become available\ud and commer...
The majority of the drugs on the market today are entirely chemically synthesized in the laboratory....
The majority of the drugs on the market today are entirely chemically synthesized in the laboratory....
Objective: The present work deals with the synthesis of tetrasubstituted imidazoles using environmen...
A series of tri- and tetra- substituted imidazoles were synthesized from benzyl, aldehyde and ammoni...
We have developed lucid protocol for the synthesis of 5- substituted 1H-tetrazole derivatives under ...
Zeolites have been used as an excellent and highly efficient catalyst for one-pot synthesis of amido...
As heterocyclic nitrogen molecules, tetrahydropyridines have been recognized as significant constitu...
ZnO-NPs as an efficient reusable heterogeneous catalyst for synthesis of 1,4-Dihydropyrimidine deriv...
ZnO-NPs as an efficient reusable heterogeneous catalyst for synthesis of 1,4-Dihydropyrimidine deriv...
A l’heure actuelle, la réduction de l’impact environnemental de l’industrie chimique est un enjeu ma...
A l’heure actuelle, la réduction de l’impact environnemental de l’industrie chimique est un enjeu ma...
Hierarchical ZSM-5 zeolite is hydrothermally synthesized in a single step with cetyltrimethylammoniu...