Gholami R, Bamoniri A, Fatemeh Mirjalili BB. One-pot synthesis of chromenes in the presence of nano-cellulose/Ti
(IV)/Fe
3O
4 as natural-based magnetic nano-catalysts under solvent free conditions.
RSC Adv 2022;
12:27555-27563. [PMID:
36276047 PMCID:
PMC9517711 DOI:
10.1039/d2ra05057a]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 09/15/2022] [Indexed: 11/24/2022] Open
Abstract
In this study, the preparation of magnetic catalysts of titanium tetrachloride stabilized on nano-cellulose named cellulose/Ti(IV)/Fe3O4 was investigated. Various methods such as XRD, SEM, FT-IR, BET, EDX, TEM, TGA and VSM were used to characterize the catalysts. Then, the identified catalysts were used for the synthesis of various chromene skeletons via reaction of malononitrile, aldehyde and dimedone, 4-hydroxycoumarine or 2-naphthole at 70 °C under solvent free conditions. The spectroscopic methods used to determine the structure of the products include 13C NMR, 1H NMR and FT-IR.
In this study, the preparation of magnetic catalysts of titanium tetrachloride stabilized on nano-cellulose named cellulose/Ti(IV)/Fe3O4 was investigated.![]()
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