naa a22 4500 510734200 CHVBK 20180411083003.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1007/s12039-013-0413-y doi (NATIONALLICENCE)springer-10.1007/s12039-013-0413-y Fe-Al/clay as an efficient heterogeneous catalyst for solvent-free synthesis of 3, 4-dihydropyrimidones [Elektronische Daten] [BASHIR DAR, PRAVEEN PATIDAR, SUNIL KUMAR, MOHAMMAD WAGAY, AKSHAY SAHOO, PARDUMAN SHARMA, SANJAY PANDEY, MEENA SHARMA, BALDEV SINGH] A practical, efficient, environmentally benign condensation of an aldehyde, ethylacetoacetate and urea/thiourea for the synthesis of 3, 4-dihydropyrimidinones, employing Fe-Al/clay composite catalyst is described. The process has been carried out under solvent-free conditions in the presence of very small amount of catalyst. The catalyst used for this process is easy to prepare, easy to handle, cost effective, easy to separate and recyclable at least up to 5 cycles with good to excellent yield. Graphical Abstract A heterogeneous catalyst (Fe-Al/clay composite) has been prepared by a simple procedure from easily available materials and applied for the synthesis of 3, 4-dihydropyrimidinones, from aldehyde, ethylacetoacetate and urea/ thiourea under solvent-free conditions. Indian Academy of Sciences, 2013 Biginelli reaction nationallicence heterogeneous catalyst nationallicence green-chemistry nationallicence modified clays nationallicence dehydrocondensation nationallicence DAR BASHIR Indian Institute of Integrative Medicine (CSIR), Canal Road, 180 001, Jammu, India aut PATIDAR PRAVEEN Indian Institute of Integrative Medicine (CSIR), Canal Road, 180 001, Jammu, India aut KUMAR SUNIL Indian Institute of Integrative Medicine (CSIR), Canal Road, 180 001, Jammu, India aut WAGAY MOHAMMAD Indian Institute of Integrative Medicine (CSIR), Canal Road, 180 001, Jammu, India aut SAHOO AKSHAY Indian Institute of Integrative Medicine (CSIR), Canal Road, 180 001, Jammu, India aut SHARMA PARDUMAN Indian Institute of Integrative Medicine (CSIR), Canal Road, 180 001, Jammu, India aut PANDEY SANJAY Indian Institute of Integrative Medicine (CSIR), Canal Road, 180 001, Jammu, India aut SHARMA MEENA Department of Chemistry, University of Jammu, 180 004, Jammu, India aut SINGH BALDEV Indian Institute of Integrative Medicine (CSIR), Canal Road, 180 001, Jammu, India aut Journal of Chemical Sciences Springer-Verlag 125/3(2013-05-01), 545-553 0974-3626 125:3<545 2013 125 12039 https://doi.org/10.1007/s12039-013-0413-y text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12039-013-0413-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- DAR BASHIR Indian Institute of Integrative Medicine (CSIR), Canal Road, 180 001, Jammu, India aut NATIONALLICENCE 700 1- PATIDAR PRAVEEN Indian Institute of Integrative Medicine (CSIR), Canal Road, 180 001, Jammu, India aut NATIONALLICENCE 700 1- KUMAR SUNIL Indian Institute of Integrative Medicine (CSIR), Canal Road, 180 001, Jammu, India aut NATIONALLICENCE 700 1- WAGAY MOHAMMAD Indian Institute of Integrative Medicine (CSIR), Canal Road, 180 001, Jammu, India aut NATIONALLICENCE 700 1- SAHOO AKSHAY Indian Institute of Integrative Medicine (CSIR), Canal Road, 180 001, Jammu, India aut NATIONALLICENCE 700 1- SHARMA PARDUMAN Indian Institute of Integrative Medicine (CSIR), Canal Road, 180 001, Jammu, India aut NATIONALLICENCE 700 1- PANDEY SANJAY Indian Institute of Integrative Medicine (CSIR), Canal Road, 180 001, Jammu, India aut NATIONALLICENCE 700 1- SHARMA MEENA Department of Chemistry, University of Jammu, 180 004, Jammu, India aut NATIONALLICENCE 700 1- SINGH BALDEV Indian Institute of Integrative Medicine (CSIR), Canal Road, 180 001, Jammu, India aut NATIONALLICENCE 773 0- Journal of Chemical Sciences Springer-Verlag 125/3(2013-05-01), 545-553 0974-3626 125:3<545 2013 125 12039 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer