Invention Grant
- Patent Title: Method for producing organic tellurium compound and method for producing vinyl polymer
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Application No.: US17294866Application Date: 2019-11-19
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Publication No.: US11713294B2Publication Date: 2023-08-01
- Inventor: Minoru Yamamoto
- Applicant: OTSUKA CHEMICAL CO., LTD
- Applicant Address: JP Osaka
- Assignee: OTSUKA CHEMICAL CO., LTD
- Current Assignee: OTSUKA CHEMICAL CO., LTD
- Current Assignee Address: JP Osaka
- Agency: WHDA, LLP
- Priority: JP 18228214 2018.12.05
- International Application: PCT/JP2019/045167 2019.11.19
- International Announcement: WO2020/116144A 2020.06.11
- Date entered country: 2021-05-18
- Main IPC: C07C395/00
- IPC: C07C395/00 ; C08F4/42 ; C08F20/14

Abstract:
Provided is a method for producing an organic tellurium compound that enables the production of an organic tellurium compound in high yield using metallic tellurium as a source material and produces less amount of side products. A method for producing an organic tellurium compound includes the steps of: (A) reacting metallic tellurium with a compound represented by a general formula (1) below; and (B) reacting a compound obtained by the step (A) with an organic halogen compound, the metallic tellurium having a copper content of less than 100 ppm,
M(R1)m Formula (1)
where R1 represents an alkyl group having 1 to 8 carbon atoms, an aryl group or an aromatic heterocyclic group, M represents an alkali metal or an alkaline earth metal, m represents 1 when M is an alkali metal, and m represents 2 when M is an alkaline earth metal.
M(R1)m Formula (1)
where R1 represents an alkyl group having 1 to 8 carbon atoms, an aryl group or an aromatic heterocyclic group, M represents an alkali metal or an alkaline earth metal, m represents 1 when M is an alkali metal, and m represents 2 when M is an alkaline earth metal.
Public/Granted literature
- US20220009885A1 METHOD FOR PRODUCING ORGANIC TELLURIUM COMPOUND AND METHOD FOR PRODUCING VINYL POLYMER Public/Granted day:2022-01-13
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