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Title:
PHOTOCHEMICAL SYNTHESIS METHOD FOR HETEROARYL AMINE COMPOUND
Document Type and Number:
WIPO Patent Application WO/2022/032879
Kind Code:
A1
Abstract:
Provided is a photochemical synthesis method for a heteroaryl amine compound. The photochemical synthesis method comprises: step S1, mixing raw materials comprising a heteroaryl nitro compound, a solvent, and a photocatalyst to obtain a mixture; and step S2, carrying out a photocatalytic reduction reaction to the mixture under lighting conditions to obtain a product system containing a heteroaryl amine compound. The photochemical synthesis method implements the photocatalytic reduction of various different heteroaryl nitro compounds under lighting conditions, so as to obtain higher yields of heteroaryl amine compounds. The photocatalyst is an existing commonly used catalyst, has no strict requirements on equipment, is easy to recycle, and reduces safety risks and catalyst costs of heteroaryl amine compounds. The whole reaction process of photocatalysis does not need the addition of any metal reagent and reducing agent, features a high reaction conversion rate and easy-operate post-treatment, and is thus safer and more environmentally friendly.

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Inventors:
ZHANG ENXUAN (CN)
LIU ZHIQING (CN)
XIAO YI (CN)
LU JIANGPING (CN)
HOU QINGLONG (CN)
Application Number:
PCT/CN2020/124467
Publication Date:
February 17, 2022
Filing Date:
October 28, 2020
Export Citation:
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Assignee:
TIANJIN ASYMCHEM PHARMACEUTICAL CO LTD (CN)
International Classes:
C07D213/73; C07D231/38; C07D239/42; C07D239/47; C07D239/48; C07D333/36
Foreign References:
CN111732535A2020-10-02
CN1634861A2005-07-06
CN1634862A2005-07-06
CN1634863A2005-07-06
CN102241595A2011-11-16
Other References:
FÜLDNER STEFAN, POHLA PATRICK, BARTLING HANNA, DANKESREITER STEPHAN, STADLER ROLAND, GRUBER MICHAEL, PFITZNER ARNO, KÖNIG BURKHARD: "Selective photocatalytic reductions of nitrobenzene derivatives using PbBiO2X and blue light", GREEN CHEMISTRY, vol. 13, no. 3, 1 January 2011 (2011-01-01), GB , pages 640 - 643, XP055901305, ISSN: 1463-9262, DOI: 10.1039/c0gc00857e
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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