Title:
METHOD FOR PRODUCING ORGANIC TELLURIUM COMPOUND AND METHOD FOR PRODUCING VINYL POLYMER
Document Type and Number:
WIPO Patent Application WO/2020/116144
Kind Code:
A1
Abstract:
Provided is a method for producing an organic tellurium compound, with which an organic tellurium compound can be produced at a high yield using metallic tellurium as a raw material, and in which the amount of by-products generated is low. This method for producing an organic tellurium compound includes a step (A) for reacting metallic tellurium with a compound represented by general formula (1) and a step (B) for reacting the compound obtained in step (A) with an organic halogen compound. The content of copper in the metallic tellurium is less than 100 ppm. Formula (1): M(R1)m [In formula (1), R1 denotes an alkyl group having 1-8 carbon atoms, an aryl group or an aromatic heterocyclic group. M denotes an alkali metal or an alkaline earth metal. The value of m is 1 when M is an alkali metal, and the value of m is 2 when M is an alkaline earth metal.]
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Inventors:
YAMAMOTO MINORU (JP)
Application Number:
PCT/JP2019/045167
Publication Date:
June 11, 2020
Filing Date:
November 19, 2019
Export Citation:
Assignee:
OTSUKA CHEMICAL CO LTD (JP)
International Classes:
C07C395/00; C08F4/42
Domestic Patent References:
| WO2004014848A1 | 2004-02-19 | |||
| WO2007119884A1 | 2007-10-25 | |||
| WO2004014848A1 | 2004-02-19 |
Foreign References:
| JP2004323437A | 2004-11-18 | |||
| JP2013119568A | 2013-06-17 | |||
| JP2004323437A | 2004-11-18 |
Other References:
YAMAGO, S. ET AL.: "Organotellurium compounds as novel initiators for controlled/living radical polymerizations . Synthesis of functionalized polystyrenes and end-group modifications", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 124, no. 12, 27 March 2002 (2002-03-27), pages 2874 - 2875, XP002964726
SILKS,L.A. ET AL.: "Synthesis and 125-tellurium NMR spectroscopy of alpha- tellurocarbonyl compounds and derivatives", SYNTHETIC COMMUNICATIONS, vol. 21, no. 8-9, January 1991 (1991-01-01), pages 1105 - 1119, XP002994690, DOI: 10.1080/00397919108019802
OHYANAGI TATSUYA ET AL.: "Compact and stable SNAP ligand-conjugated quantum dots as a fluorescent probe for single-molecule imaging of dynein motor protein", CHEMICAL COMMUNICATIONS, vol. 51, no. 80, 14 October 2015 (2015-10-14), pages 14836 - 14839, XP055716748
See also references of EP 3892612A4
SILKS,L.A. ET AL.: "Synthesis and 125-tellurium NMR spectroscopy of alpha- tellurocarbonyl compounds and derivatives", SYNTHETIC COMMUNICATIONS, vol. 21, no. 8-9, January 1991 (1991-01-01), pages 1105 - 1119, XP002994690, DOI: 10.1080/00397919108019802
OHYANAGI TATSUYA ET AL.: "Compact and stable SNAP ligand-conjugated quantum dots as a fluorescent probe for single-molecule imaging of dynein motor protein", CHEMICAL COMMUNICATIONS, vol. 51, no. 80, 14 October 2015 (2015-10-14), pages 14836 - 14839, XP055716748
See also references of EP 3892612A4
Attorney, Agent or Firm:
MIYAZAKI & METSUGI (JP)
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