caa a22 4500 605528462 CHVBK 20210128100813.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1134/S107042801501011X doi (NATIONALLICENCE)springer-10.1134/S107042801501011X One-pot three-component synthesis of 3-(α-aminobenzyl)-4-hydroxycoumarin derivatives using nanocrystalline TiO2 as reusable catalyst [Elektronische Daten] [J. Sangshetti, F. Khan, C. Kute, Z. Zaheer, R. Ahmed] An efficient nanocrystalline TiO2-catalyzed one-pot synthesis of 3-[(piperidin-1-yl)phenylmethyl]- and 3-[(morpholin-4-yl)phenylmethyl]-4-hydroxycoumarins has been developed via three-component Mannich type condensation of 4-hydroxycoumarin with aromatic aldehydes and secondary amines (piperidine or morpholine) in ethanol at room temperature. The catalyst can be easily recovered and reused with almost the same catalytic activity. The proposed method is advantageous due to its simplicity, short reaction time, catalyst reusability, good to excellent yield, and clean and easy work-up. Pleiades Publishing, Ltd., 2015 Sangshetti J. Dr. Rafiq Zakaria Campus, Y.B. Chavan College of Pharmacy, 431001, Aurangabad, Maharashtra, India aut Khan F. Dr. Rafiq Zakaria Campus, Y.B. Chavan College of Pharmacy, 431001, Aurangabad, Maharashtra, India aut Kute C. Dr. Rafiq Zakaria Campus, Y.B. Chavan College of Pharmacy, 431001, Aurangabad, Maharashtra, India aut Zaheer Z. Dr. Rafiq Zakaria Campus, Y.B. Chavan College of Pharmacy, 431001, Aurangabad, Maharashtra, India aut Ahmed R. Dr. Rafiq Zakaria Campus, Y.B. Chavan College of Pharmacy, 431001, Aurangabad, Maharashtra, India aut Russian Journal of Organic Chemistry Pleiades Publishing 51/1(2015-01-01), 69-73 1070-4280 51:1<69 2015 51 11178 https://doi.org/10.1134/S107042801501011X text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1134/S107042801501011X text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sangshetti J. Dr. Rafiq Zakaria Campus, Y.B. Chavan College of Pharmacy, 431001, Aurangabad, Maharashtra, India aut NATIONALLICENCE 700 1- Khan F. Dr. Rafiq Zakaria Campus, Y.B. Chavan College of Pharmacy, 431001, Aurangabad, Maharashtra, India aut NATIONALLICENCE 700 1- Kute C. Dr. Rafiq Zakaria Campus, Y.B. Chavan College of Pharmacy, 431001, Aurangabad, Maharashtra, India aut NATIONALLICENCE 700 1- Zaheer Z. Dr. Rafiq Zakaria Campus, Y.B. Chavan College of Pharmacy, 431001, Aurangabad, Maharashtra, India aut NATIONALLICENCE 700 1- Ahmed R. Dr. Rafiq Zakaria Campus, Y.B. Chavan College of Pharmacy, 431001, Aurangabad, Maharashtra, India aut NATIONALLICENCE 773 0- Russian Journal of Organic Chemistry Pleiades Publishing 51/1(2015-01-01), 69-73 1070-4280 51:1<69 2015 51 11178