Process for producing episulfide compound for optical material, episulfide-containing composition, and polymerizable composition for optical material including the same composition
US-10266636-B2 · Apr 23, 2019 · US
Process for producing (poly)sulfide compound and process for producing episulfide compound
US10844010B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10844010-B2 |
| Application number | US-201716084632-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 17, 2017 |
| Priority date | Mar 18, 2016 |
| Publication date | Nov 24, 2020 |
| Grant date | Nov 24, 2020 |
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Abstract
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In a process for producing a (poly) sulfide compound represented by General Formula (2) of the present invention, thiol compounds represented by General Formula (1) are reacted with each other in the presence of a basic compound represented by General Formula (4) or General Formula (5) and sulfur.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for producing a (poly)sulfide compound represented by General Formula (2), wherein thiol compounds represented by General Formula (1) are reacted with each other in the presence of: (i) a basic compound represented by General Formula (4) or triethylamine and (ii) sulfur, wherein, in General Formula (1), X 1 and X 2 indicate a hydroxyl group or a halogen atom, one is a hydroxyl group, and the other is a halogen atom, R 1 to R 7 may be identical to or different from each other and indicate a hydrogen atom, a C 1 to C 10 linear or branched alkyl group, or a substituted or unsubstituted aryl group, R 1 to R 7 may be identical to or different from each other respectively, and m indicates an integer of 0 to 2, M(SH)n (4) wherein, in General Formula (4), M represents an alkali metal or an alkali earth metal, and n represents a valence of the alkali metal or the alkali earth metal represented by M, wherein, in General Formula (2), X 1 and X 2 , R 1 to R 7 , and m are identical to those in General Formula (1), a plurality of X 1 and X 2 , R 1 to R 7 , and m may be identical to or different from each other, and p indicates an integer of 0 to 4. 2. The process for producing a (poly)sulfide compound according to claim 1 , wherein the thiol compounds are reacted at a pressure of 50 Torr to 600 Torr. 3. The process for producing a (poly)sulfide compound according to claim 1 , wherein the halogen atom as X 1 or X 2 is a chlorine atom. 4. The process for producing a (poly)sulfide compound according to claim 1 , wherein the thiol compound represented by General Formula (1) includes a compound represented by Formula (3) 5. The process for producing a (poly)sulfide compound according to claim 1 , wherein the compound represented by General Formula (4) is sodium hydrogen sulfide. 6. A process for producing an episulfide compound comprising: a step of epoxidizing the (poly)sulfide compound obtained using the process according to claim 1 under a basic condition to obtain an epoxy compound represented by General Formula (6), wherein, in General Formula (6), R 1 to R 7 and m are identical to those in General Formula (1), a plurality of R 1 to R 7 and m may be identical to or different from each other, and p indicates an integer of 0 to 4; and a step of reacting the epoxy compound with a sulfating agent to obtain an episulfide compound represented by General Formula (7), wherein, in General Formula (7), R 1 to R 7 , m, and p are identical to those in General Formula (6). 7. The process for producing an episulfide compound according to claim 6 , wherein the episulfide compound includes a compound represented by General Formula (8), wherein, in General Formula (8), p indicates an integer of 0 to 4. 8. The process for producing an episulfide compound according to claim 6 , wherein the episulfide compound includes a compound represented by General Formula (9)
Assignees
Inventors
Classifications
- C07C319/24Primary
by reactions involving the formation of sulfur-to-sulfur bonds · CPC title
Other general methods · CPC title
Polysulfides · CPC title
- C07C319/14Primary
of sulfides · CPC title
of an acyclic saturated carbon skeleton · CPC title
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- What does patent US10844010B2 cover?
- In a process for producing a (poly) sulfide compound represented by General Formula (2) of the present invention, thiol compounds represented by General Formula (1) are reacted with each other in the presence of a basic compound represented by General Formula (4) or General Formula (5) and sulfur.
- Who is the assignee on this patent?
- Mitsui Chemicals Inc
- What technology area does this patent fall under?
- Primary CPC classification C07C319/24. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 24 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).