Highly efficient nanosized mesoporous CuMgAl ternary oxide catalyst

Patent metadata

Field	Value
Publication number	US-11045792-B1
Application number	US-202017038367-A
Country	US
Kind code	B1
Filing date	Sep 30, 2020
Priority date	Sep 30, 2020
Publication date	Jun 29, 2021
Grant date	Jun 29, 2021

Abstract

Highly efficient nanosized mesoporous CuMgAl ternary oxide catalysts are provided.

First claim

We claim:

1. A method of catalyzing a chemical reaction comprising
contacting reactants of the chemical reaction with a catalytically effective amount of a CuMgAl ternary oxide catalyst, wherein the reactants include a nitroalkane and an aldehyde or a ketone.

2. The method of claim 1 , wherein the reaction is conducted in the presence of ultrasonic irradiation.

3. The method of claim 1 , wherein the nitroalkane is nitromethane, the aldehyde is an aryl aldehyde and reaction products include one or more β-nitro-alcohols.

4. The method of claim 1 , further comprising, after the reaction is complete,
recovering and reusing the CuMgAl ternary oxide catalyst, wherein the steps of recovering and reusing are performed at least 5 times without diminished catalytic activity of the CuMgAl ternary oxide catalyst.

5. The method of claim 4 , further comprising, after the step of recovering, reusing the CuMgAl ternary oxide catalyst to catalyze another chemical reaction.

6. A method of making one or more β-nitro-alcohols, comprising
combining 4-nitrobenzaldehyde, nitromethane and a CuMgAl ternary oxide catalyst in a reaction vessel;
exposing the reaction vessel to ultrasonic energy for a period of time sufficient to convert the 4-nitrobenzaldehyde and the nitromethane to the one or more β-nitro-alcohols; and
recovering the one or more β-nitro-alcohols.

7. The method of claim 6 , wherein the CuMgAl ternary oxide catalyst is CuMgAl-I or CuMgAl-II.

8. The method of claim 6 , wherein the CuMgAl ternary oxide catalyst is CuMgAl-I.

9. The method of claim 6 , wherein the β-nitro-alcohols include 2-Nitro-1-(4-nitrophenyl)ethan-1-ol, 2-Nitro-1-(3-nitrophenyl)ethan-1-ol, 2-Nitro-1-(2-nitrophenyl)ethan-1-ol, 1-(3,5-Dibromophenyl)-2-nitroethan-1-ol, 4-Bromo-2-(1-hydroxy-2-nitroethyl)-6-nitrophenol, 1-[4-(Dimethylamino)phenyl]-2-nitroethan-1-ol, 1-(4-Bromophenyl)-2-25 nitroethan-1-ol, 1-(4-Methoxyphenyl)-2-nitroethan-1-ol, 1-(3,5-Dimethoxyphenyl)-2-nitroethan-1-ol and 4-(1-Hydroxy-2-nitroethyl)-2-methoxyphenol.

Assignees

• Univ King Abdulaziz

Inventors

• Mostafa Mohamed Mokhtar Mohamed
• Alhashedi Budoor Fadl Ali
• Kashmery Heba Abbas
• Ahmed Nesreen Said Ismail
• Saleh Tamer Said Sayed
• Narasimharao Katabathini

Classifications

• B01J2235/15

  X-ray diffraction · CPC title

• B01J2235/10

  Infrared [IR] · CPC title

• B01J2235/30

  Scanning electron microscopy; Transmission electron microscopy · CPC title

• B01J35/73

  having a two-dimensional [2D] layered crystalline structure, e.g. layered double hydroxide [LDH] · CPC title

• B01J35/34

  Mechanical properties · CPC title