Title:
OXIME ESTER PHOTOINITIATORS CONTAINING FIVE-MEMBERED HETEROAROMATIC RING STRUCTURE, AND PREPARATION AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/252628
Kind Code:
A1
Abstract:
Oxime ester compounds represented by formulas (I) and (II) containing an unsaturated five-membered heteroaromatic ring structure, wherein m, n, n', A1, A2, R1, R2, R3, R4, R5, R6, R6', R7, and R7' are defined in the specification. The compounds represented by the formulas (I) and (II) have excellent light absorption at 350-450 nm, can initiate the polymerization of acrylate-based monomers at low concentration, and have excellent thermal stability in the acrylate monomers, are oxime ester photoinitiators good in stability and suitable for an ultraviolet-visible LED light source. The present invention further provides preparation of the compounds represented by the formulas (I) and (II) and use of the compounds represented by the formulas (I) and (II) as photoinitiators or photosensitizers.
Inventors:
PANG YULIAN (CN)
ZOU YINGQUAN (CN)
FAN SHUHENG (CN)
ZOU YINGQUAN (CN)
FAN SHUHENG (CN)
Application Number:
PCT/CN2019/091563
Publication Date:
December 24, 2020
Filing Date:
June 17, 2019
Export Citation:
Assignee:
HUBEI GURUN TECH CO LTD (CN)
International Classes:
C07D333/22; C07D207/323; C07D307/52; C07D409/06; C08F2/48; C08F122/20
Domestic Patent References:
| WO2008035671A1 | 2008-03-27 |
Foreign References:
| CN1299812A | 2001-06-20 | |||
| JP2007219362A | 2007-08-30 | |||
| KR20170042060A | 2017-04-18 | |||
| CN104098720A | 2014-10-15 | |||
| CN1720245A | 2006-01-11 | |||
| KR20180110948A | 2018-10-11 | |||
| CN110156728A | 2019-08-23 |
Other References:
ACS: "Registry-1", REGISTRY, 31 May 2019 (2019-05-31), DOI: 20200303114109X
ACS: "Registry-2", REGISTRY, 9 May 2019 (2019-05-09), DOI: 20200303114135X
TORRES-OCHOA, R. O. ET AL.: "Iron-Catalysed Remote C(sp3)-H Azidation of O-Acyl Oximes and N-Acyloxy Imidates Enabled by 1, 5-Hydrogen Atom Transfer of Iminyl and Imidate Radicals: Synthesis of γ-Azido Ketones and β-Azido Alcohols", CHEM. EUR. J., vol. 25, 10 May 2019 (2019-05-10), XP055766782, DOI: 20200303114437X
ACS: "Registry-2", REGISTRY, 9 May 2019 (2019-05-09), DOI: 20200303114135X
TORRES-OCHOA, R. O. ET AL.: "Iron-Catalysed Remote C(sp3)-H Azidation of O-Acyl Oximes and N-Acyloxy Imidates Enabled by 1, 5-Hydrogen Atom Transfer of Iminyl and Imidate Radicals: Synthesis of γ-Azido Ketones and β-Azido Alcohols", CHEM. EUR. J., vol. 25, 10 May 2019 (2019-05-10), XP055766782, DOI: 20200303114437X
Attorney, Agent or Firm:
ZHONGZI LAW OFFICE (CN)
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