Title:
IMMOBILIZED ZINC COMPLEX HAVING GUANIDINE LIGAND, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING CYCLIC CARBONATE USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/248723
Kind Code:
A1
Abstract:
Provided is an immobilized zinc complex comprising at least: a compound represented by general formula (1) (where R1 and R2 each represent a monovalent hydrocarbon group, R3 represents a divalent hydrocarbon group, R4 to R7 each represent a hydrogen atom or monovalent hydrocarbon group, R4 and R5, R6 and R7, or R4 and R6 may be combined with each other to form a ring, and n represents an integer of 0-2); a zinc halide represented by general formula (2) ZnX2 (where X represents a halogen atom); and an inorganic carrier, wherein silicon atoms, in the zinc complex having a guanidine ligand, in which a nitrogen atom in the compound represented by general formula (1) and a zinc atom in the zinc halide are bonded via a coordinate bond, are immobilized via covalent bonds with oxygen atoms on the surface of the inorganic carrier. The immobilized zinc complex can provide a cyclic carbonate compound at a good yield under mild conditions such as ambient pressure and/or room temperature conditions, and can be easily recovered and reused after the reaction.
Inventors:
ICHII SHUN (JP)
TONOMURA YOICHI (JP)
KIYOMORI AYUMU (JP)
TONOMURA YOICHI (JP)
KIYOMORI AYUMU (JP)
Application Number:
PCT/JP2023/019878
Publication Date:
December 28, 2023
Filing Date:
May 29, 2023
Export Citation:
Assignee:
SHINETSU CHEMICAL CO (JP)
International Classes:
C07F19/00; B01J31/26; B01J37/04; C07D317/36; C07D317/38; C07F3/06; C07F7/10
Domestic Patent References:
| WO2022113437A1 | 2022-06-02 | |||
| WO2015008854A1 | 2015-01-22 |
Foreign References:
| JP2008296066A | 2008-12-11 | |||
| CN101037431A | 2007-09-19 | |||
| CN1696123A | 2005-11-16 |
Other References:
XIE HAIBO, DUAN HAIFENG, LI SHENGHAI, ZHANG SUOBO: "The effective synthesis of propylene carbonate catalyzed by silica-supported hexaalkylguanidinium chloride", NEW JOURNAL OF CHEMISTRY, ROYAL SOCIETY OF CHEMISTRY, GB, vol. 29, no. 9, 1 January 2005 (2005-01-01), GB , pages 1199, XP093118756, ISSN: 1144-0546, DOI: 10.1039/b504822b
Attorney, Agent or Firm:
PATENT ATTORNEY CORPORATION EI-MEI PATENT OFFICE (JP)
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