A review on green Lewis acids: zirconium(IV) oxydichloride octahydrate (ZrOCl2·8H2O) and zirconium(IV) tetrachloride (ZrCl4) in organic chemistry

K Nikoofar, Z Khademi - Research on Chemical Intermediates, 2016 - Springer
Lewis acids are important and interesting catalysts in most organic transformations. Among
different Lewis acids, Zr (IV) species such as ZrCl 4 and ZrOCl 2· 8H 2 O are allocated …

Design and one-pot synthesis of α-aminophosphonates and bis (α-aminophosphonates) by iron (III) chloride and cytotoxic activity

Z Rezaei, H Firouzabadi, N Iranpoor, A Ghaderi… - European Journal of …, 2009 - Elsevier
In this study, we used a solution of FeCl3 in THF to facilitate the Mannich-type reaction of
aldehyde, amine and phosphite compounds to form corresponding α-aminophosphonates in …

Recent applications of zirconium compounds as catalysts or reagents in organic synthesis

LP Mo, ZH Zhang - Current Organic Chemistry, 2011 - ingentaconnect.com
In this brief review, we provide an updated summary of the significant advances in organic
synthesis using zirconium compounds such as zirconium tetrachloride, zirconium oxide …

Mesoporous SBA-15@n-Pr-THAM-ZrO organic–inorganic hybrid: as a highly efficient reusable nanocatalyst for the synthesis of polyhydroquinolines and 2,3 …

A Ghorbani-Choghamarani, H Aghavandi… - Journal of Porous …, 2021 - Springer
In this work, tris (hydroxymethyl) aminomethane-Zirconium complex supported on modified
SBA-15 (SBA-15@ n-Pr-THMAM-ZrO) prepared as a novel mesoporous catalyst. The …

Zr 4+ solution structures from pair distribution function analysis

M Kløve, RS Christensen, IG Nielsen, S Sommer… - Chemical …, 2022 - pubs.rsc.org
The structures of metal ions in solution constitute essential information for obtaining
chemical insight spanning from catalytic reaction mechanisms to formation of functional …

ZrOCl2·8H2O: a highly efficient catalyst for the synthesis of 1,8‐dioxo‐octahydroxanthene derivatives under solvent‐free conditions

HY Lü, JJ Li, ZH Zhang - Applied Organometallic Chemistry, 2009 - Wiley Online Library
ZrOCl<sub>2</sub>·8H<sub>2</sub>O: a highly efficient catalyst for the synthesis of 1,8╒dioxo
Page 1 165 Full Paper Received: 10 October 2008 Revised: 12 November 2008 Accepted …

Direct conversion of thiols and disulfides into sulfonamides

K Bahrami, MM Khodaei, M Soheilizad - Tetrahedron Letters, 2010 - Elsevier
The H2O2–ZrCl4 reagent system is used as a new and efficient reagent for the conversion of
thiols and disulfides into sulfonamides. The protocol offers several advantages such as …

Conversion of Unprotected Aldose Sugars to Polyhydroxyalkyl and C-Glycosyl Furans via Zirconium Catalysis

N Ronaghi, DM Fialho, CW Jones… - The Journal of Organic …, 2020 - ACS Publications
An efficient, zirconium-catalyzed conversion of unprotected aldose sugars with
acetylacetone to polyhydroxyalkyl furans or C-glycosylfurans is reported. The furan products …

Zirconium(IV) chloride as versatile catalyst for the expeditious synthesis of quinoxalines and pyrido[2,3-b]pyrazines under ambient conditions

K Aghapoor, HR Darabi, F Mohsenzadeh… - Transition Metal …, 2010 - Springer
Among the various transition metal chlorides, zirconium (IV) chloride was found to be an
efficient catalyst for the rapid synthesis of a wide range of 2, 3-dialkyl-and 2, 3-diaryl …

Cloud point extraction and spectrophotometric determination of amaranth in food samples using nonionic surfactant Triton X-100 and tetrabutylammonium hydrogen …

N Pourreza, S Elhami - Journal of the Iranian Chemical Society, 2009 - Springer
Cloud point extraction methodology was successfully employed for preconcentration of trace
amounts of amaranth prior to its determination by spectrophotometry. The method was …