| Authors | Raziyeh Gholami, Abdolhamid Bamoniri, Bi Bi Fatemeh Mirjalili |
|---|---|
| Journal | rsc advances |
| Page number | 27555 |
| Volume number | 12 |
| IF | ثبت نشده |
| Paper Type | Full Paper |
| Published At | 2022-09-21 |
| Journal Grade | Scientific - research |
| Journal Type | Electronic |
| Journal Country | Iran, Islamic Republic Of |
| Journal Index | SCOPUS ,JCR |
Abstract
n 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, 1 H NMR and FT-IR
tags: nano-cellulose/Ti(IV)/Fe3O4, chromenes , natural-based magnetic nano-catalysts