Magnetic ferrocenyl-functionalized nanoparticle

Patent metadata

Field	Value
Publication number	US-10463391-B2
Application number	US-201816151471-A
Country	US
Kind code	B2
Filing date	Oct 4, 2018
Priority date	Oct 11, 2016
Publication date	Nov 5, 2019
Grant date	Nov 5, 2019

Abstract

A functionalized magnetic nanoparticle including an organometallic sandwich compound and a magnetic metal oxide. The functionalized magnetic nanoparticle may be reacted with a metal precursor to form in a catalyst for various C—C bond forming reactions. The catalyst may be recovered with ease by attracting the catalyst with a magnet.

First claim

The invention claimed is:

1. A magnetic nanoparticle functionalized with a ferrocenyl group, comprising:
a complex represented by Formula (IIIA), Formula (IIIB), Formula (IVA), or Formula (IVB); and
an iron(III) oxide nanoparticle;
wherein the complex represented by Formula (IIIA) Formula (IIIB), Formula (IVA), or Formula (IVB) is:

where each of R 1 , R 2 , R 3 , and R 4 is independently a hydrogen, an optionally substituted alkyl, or an optionally substituted aryl;
each of R 6 and R 7 is independently a hydrogen, an optionally substituted alkyl, an optionally substituted aryl, an optionally substituted arylalkyl, an optionally substituted alkoxy, or an optionally substituted aryloxy;
each of R 8 is an optionally substituted alkyl, an optionally substituted aryl, or an optionally substituted arylalkyl;
R 9 is a single bond, a hydrogen, an optionally substituted alkyl, an optionally substituted aryl, or an optionally substituted arylalkyl;
R 9′ is a —O—, hydrogen, an optionally substituted alkyl, an optionally substituted aryl, an optionally substituted arylalkyl, an optionally substituted alkoxy, an optionally substituted aryloxy, or an optionally substituted arylalkoxy;
a and b are independently an integer in a range of 1-10;
X is O or NH;
M is iron;
W is an optionally substituted arylene; and
wherein an oxygen atom in —OR 9 group in the complex represented by Formula (IIIA), Formula (IIIB), Formula (IVA), or Formula (IVB) is bound to a surface of the nanoparticle.

2. The magnetic nanoparticle of claim 1 , wherein the nanoparticle has an average diameter in a range of 1-20 nm.

3. The magnetic nanoparticle of claim 1 , wherein R 1 is an optionally substituted alkyl.

4. The magnetic nanoparticle of claim 1 , wherein R 8 is an optionally substituted aryl.

5. The magnetic nanoparticle of claim 1 , wherein the functionalized magnetic nanoparticle has a saturation magnetization in a range of 40-70 emu/g.

Assignees

• Univ King Fahd Pet & Minerals

Inventors

• Shaikh M Nasiruzzaman
• Aziz Md Abdul
• Helal Aasif

Classifications

• B01J37/343

  of ultrasonic wave energy · CPC title

• B01J2540/66

  Linker or spacer groups · CPC title

• B01J31/1625

  immobilised by covalent linkages, i.e. pendant complexes with optional linking groups · CPC title

• A61B2017/22038

  with a guide wire · CPC title

• C07C201/12

  by reactions not involving the formation of nitro groups · CPC title