SU1351923A1 - Method of obtaining thio-acids - Google Patents
Method of obtaining thio-acids Download PDFInfo
- Publication number
- SU1351923A1 SU1351923A1 SU864050210A SU4050210A SU1351923A1 SU 1351923 A1 SU1351923 A1 SU 1351923A1 SU 864050210 A SU864050210 A SU 864050210A SU 4050210 A SU4050210 A SU 4050210A SU 1351923 A1 SU1351923 A1 SU 1351923A1
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- SU
- USSR - Soviet Union
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- sulfur
- acid
- heated
- phosphorus
- yield
- Prior art date
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Lubricants (AREA)
Abstract
Изобретение касаетс сероорга- нических соединений, в частности получени ТИОКИСЛОТ, которые наход т применение в синтезе присадок к смазочным маслам и биологически активных соединений. Повышение выхода и упрснцение процесса взаимодействи карбоновой кислоты и Р, S j достигаетс использованием серы при массовом соотношении и серы, равном 1: : (0,9-1,1), и 115-125 с. Способ обеспечивает повышение выхода с 50-60 до 92% и упрощение процесса за счет проведени его в гомогенной, а не в гетерогенной среде. 1 табл. СЛ С со ю соThe invention relates to organic sulfur compounds, in particular the preparation of Tioxy Acid, which are used in the synthesis of lubricant additives and biologically active compounds. Increasing the yield and controlling the process of the interaction of carboxylic acid and P, S j is achieved using sulfur at a mass ratio of sulfur equal to 1:: (0.9-1.1), and 115-125 s. The method provides an increase in yield from 50-60 to 92% and simplifies the process by conducting it in a homogeneous, and not in a heterogeneous environment. 1 tab. СЛ С сою со
Description
Изобретение относитс к усовершенствованному способу получени тиокислот которые наход т примене-г ние в синтезе присадок к смазочным маслам и биологически активных веществ .The invention relates to an improved method for the preparation of thioacids which are used in the synthesis of lubricant additives and biologically active substances.
Целью изобретени вл етс повышение выходов целевых продуктов и упрощение процесса, что достигаетс проведением взаимодействи карбоновой кислоты и п тисернистого фосфора в присутствии серы при массовом соотношении сера, равном 1:(0,9- 1,1), и температуре 115-125 С,The aim of the invention is to increase the yields of the target products and simplify the process, which is achieved by carrying out the interaction of carboxylic acid and five-grained phosphorus in the presence of sulfur at a mass ratio of sulfur equal to 1: (0.9-1.1) and a temperature of 115-125 ° C,
Пример 1. Тиоуксусна кислота . В круглодонную колбу, снабженную мешалкой, термометром и нисход щимExample 1. Thioacetic acid. In a round bottom flask equipped with a stirrer, a thermometer and a downward
лодильником помещают 65 г п тисернистого фосфора, 65 г серы. Смесь нагревают до и перемешивают. Затем добавл ют 100 г валериановой кислоты и перемешивают 2 ч, охлаждают . Жидкость из колбы сливают и разгон ют на ректификационной колонке. Получено 94 г (81%) тиовалериановой -10 кислоты. Т.кип. 138-140 С.65 g of n-grained phosphorus, 65 g of sulfur are placed in a dish. The mixture is heated to and stirred. Then 100 g of valeric acid are added and stirred for 2 hours, cooled. The liquid from the flask is drained and dispersed on a distillation column. 94 g (81%) of thiovaleric acid 10 was obtained. Bp 138-140 C.
Найдено, %: S 24,3.Found,%: S 24.3.
Вычислено, %: S 25,6.Calculated,%: S 25.6.
В таблице приведены примеры, иллюстрирующие проведение процесса при 5 различных параметрах процесса и с использованием других кислот.The table shows examples illustrating the process with 5 different process parameters and using other acids.
Преимуществами способа вл ютс повьш1ение выхода целевых продуктов до 92% против 50-60% у прототипа иThe advantages of the method are to increase the yield of the target products to 92% against 50-60% of the prototype and
ни реакции в гомогенной среде проти гетерогенной в прототипе.nor the reaction in a homogeneous environment and heterogeneous in the prototype.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU864050210A SU1351923A1 (en) | 1986-01-06 | 1986-01-06 | Method of obtaining thio-acids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU864050210A SU1351923A1 (en) | 1986-01-06 | 1986-01-06 | Method of obtaining thio-acids |
Publications (1)
Publication Number | Publication Date |
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SU1351923A1 true SU1351923A1 (en) | 1987-11-15 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU864050210A SU1351923A1 (en) | 1986-01-06 | 1986-01-06 | Method of obtaining thio-acids |
Country Status (1)
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SU (1) | SU1351923A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EA008941B1 (en) * | 2003-03-03 | 2007-10-26 | Лонца Аг | Method for the production of a thioacetic acid and salts thereof |
CN108314637A (en) * | 2018-04-17 | 2018-07-24 | 兖矿水煤浆气化及煤化工国家工程研究中心有限公司 | A kind of preparation method and process units of thioacetic acid |
-
1986
- 1986-01-06 SU SU864050210A patent/SU1351923A1/en active
Non-Patent Citations (1)
Title |
---|
Kekule F.A. Aim. Chem, 1854, 90,311. * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EA008941B1 (en) * | 2003-03-03 | 2007-10-26 | Лонца Аг | Method for the production of a thioacetic acid and salts thereof |
CN108314637A (en) * | 2018-04-17 | 2018-07-24 | 兖矿水煤浆气化及煤化工国家工程研究中心有限公司 | A kind of preparation method and process units of thioacetic acid |
CN108314637B (en) * | 2018-04-17 | 2023-10-24 | 兖矿水煤浆气化及煤化工国家工程研究中心有限公司 | Preparation method and production device of thioacetic acid |
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