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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12017206 B1

PDFFull Text
Date of Patent:
Jun. 25, 2024

Filed:

Sep. 28, 2022

Preparation method of cu—pd—ceo2/γ—al2o3@np catalyst and synthesis method of benzopyrazine compounds

Applicant:

Zhejiang University of Technology, Zhejiang, CN;

Inventors:

Feng Feng, Zhejiang, CN;

Xiaonian Li, Zhejiang, CN;

Lingling Guo, Zhejiang, CN;

Yanxia Sun, Zhejiang, CN;

Chunshan Lu, Zhejiang, CN;

Qunfeng Zhang, Zhejiang, CN;

Jiatong Jin, Zhejiang, CN;

Xiaoliang Xu, Zhejiang, CN;

Assignee:

ZHEJIANG UNIVERSITY OF TECHNOLOGY, Zhejiang, CN;

Attorney:

Muncy, Geissler, Olds & Lowe, P.C.

Primary Examiner:

D Margaret M Seaman

Int. Cl.
CPC ...
C07D 241/42 (2006.01); B01J 21/04 (2006.01); B01J 23/89 (2006.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01); B01J 37/04 (2006.01); B01J 37/08 (2006.01);
U.S. Cl.
CPC ...
B01J 23/894 (2013.01); B01J 21/04 (2013.01); B01J 37/009 (2013.01); B01J 37/024 (2013.01); B01J 37/04 (2013.01); B01J 37/088 (2013.01); C07D 241/42 (2013.01);
Abstract

A preparation method of Cu—Pd—CeO/γ-AlO@NP catalyst and a synthesis method of benzopyrazine compounds. The preparation method of the Cu—Pd—CeO/γ-AlO@NP catalyst comprises the following steps: (1) preparing a CeO/γ-AlOcarrier; (2) preparing a CeO/γ-AlO@NP carrier; (3) preparing the Cu—Pd—CeO/γ-AlO@NP catalyst by impregnation method. A one-pot method for synthesizing benzopyrazine compounds of formula (III) includes using an o-nitroaniline compound of formula (I) and an aliphatic diol compound of formula (II) as raw materials, carrying out the one-pot synthesis of the benzopyrazine compound of formula (III) under solvent-free condition and under the combined action of the Cu—Pd—CeO/γ-AlO@NP catalyst prepared by the method and an alkali. The Cu—Pd—CeO/γ-AlO@NP catalyst increases the number of basic sites by doping N and P, and meanwhile loads CeOto assist in the extraction of protons, thereby improving the dehydrogenation activity and product selectivity.

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Feng, Feng. (2024). Preparation method of cu—pd—ceo2/γ—al2o3@np catalyst and synthesis method of benzopyrazine compounds (U.S. Patent No. 12017206). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12017206

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