JPS56164181A - Preparation of cyclic polysulfide - Google Patents
Preparation of cyclic polysulfideInfo
- Publication number
- JPS56164181A JPS56164181A JP6634580A JP6634580A JPS56164181A JP S56164181 A JPS56164181 A JP S56164181A JP 6634580 A JP6634580 A JP 6634580A JP 6634580 A JP6634580 A JP 6634580A JP S56164181 A JPS56164181 A JP S56164181A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- readily
- compound
- halogen
- alkyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Heterocyclic Compounds Containing Sulfur Atoms (AREA)
Abstract
PURPOSE: To obtain a cyclic polysulfide, having a physiological activity, and useful as a crosslinking agent and partially novel in high yield readily, by reacting a chain or cyclic metallic sulfide with a halogen or sulfur mono- or disulfide.
CONSTITUTION: A metallic sulfide of formula I or II [R is formula III (R' is H or alkyl; n is an integer 2W8); R" and R''' are alkyl or aryl; M is Si or Sn] is reacted with a halogen, particularly bromine, sulfur di- or monochloride, preferably in a polar solvent, e.g. tetrahydrofuran or carbon tetrachloride, to give a partially novel compound of formula IV (m is 2, 3 or 4, and novel when m is 4) readily in a higher yield than the conventional method. According to the method, the compound of formula IV is separated readily from by-products, and the effect is particularly remarkable when M in the compound of formula I is Si. Therefore, the method can be relatively readily industrialized.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6634580A JPS56164181A (en) | 1980-05-21 | 1980-05-21 | Preparation of cyclic polysulfide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6634580A JPS56164181A (en) | 1980-05-21 | 1980-05-21 | Preparation of cyclic polysulfide |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56164181A true JPS56164181A (en) | 1981-12-17 |
Family
ID=13313167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6634580A Pending JPS56164181A (en) | 1980-05-21 | 1980-05-21 | Preparation of cyclic polysulfide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56164181A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003087212A1 (en) * | 2002-04-18 | 2003-10-23 | Societe De Technologie Michelin | Rubber composition comprising a polysulphide siloxane |
DE10160184B4 (en) * | 2000-12-08 | 2017-08-24 | The Yokohama Rubber Co., Ltd. | Process for the preparation of a cyclopolysulfide compound |
-
1980
- 1980-05-21 JP JP6634580A patent/JPS56164181A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10160184B4 (en) * | 2000-12-08 | 2017-08-24 | The Yokohama Rubber Co., Ltd. | Process for the preparation of a cyclopolysulfide compound |
WO2003087212A1 (en) * | 2002-04-18 | 2003-10-23 | Societe De Technologie Michelin | Rubber composition comprising a polysulphide siloxane |
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