SU620491A1 - Method of obtaining oxides of dialkyl-4-oxyphenylphosphines - Google Patents
Method of obtaining oxides of dialkyl-4-oxyphenylphosphinesInfo
- Publication number
- SU620491A1 SU620491A1 SU762389598A SU2380598A SU620491A1 SU 620491 A1 SU620491 A1 SU 620491A1 SU 762389598 A SU762389598 A SU 762389598A SU 2380598 A SU2380598 A SU 2380598A SU 620491 A1 SU620491 A1 SU 620491A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- dialkyl
- oxyphenylphosphines
- oxides
- obtaining oxides
- obtaining
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Изобретение относитс к области химии фосфорорганических соединений с Р-С св зью, а именно к новому способу получени окисей иалкип-4-оксифенипфосфинов обшей формулыThis invention relates to the field of chemistry of organophosphorus compounds with a P – C bond, namely, to a new method for producing oxides of alipat-4-hydroxypheniphosphine general formulas
2j-S«4-0.2j-S "4-0.
где R - атсил,where R is atsil,
которые могут найти применение в качестве полупродуктов дл получени термо-, огнестойких красителей, комплексообразователей , биологически активных соединений, или огне-, термостойких фосфорилированных фенолформапьдегидных смол.which can be used as intermediates for the preparation of thermo-, fire-resistant dyes, complexing agents, biologically active compounds, or fire-, heat-resistant phosphorylated phenol-formahyde resins.
Известен способ получени окиси дифенип-4-оксифенига|)осфина обработкой 57%-.ной йодистоводородной кислотой окиси дифенип-4-метоксифенилфосфина при нагревании до 150 С в присутствии фосфсфистой кислоты ij.A known method for producing diphenip-4-hydroxyphenig oxide) osphine by treating with 57% -. Hydroiodic acid of diphenip-4-methoxyphenylphosphine oxide when heated to 150 ° C in the presence of a phosphoric acid ij.
Наиболее близким к описываемому изобретению по технической сущности и достигаемому результату вл етс спсThe closest to the described invention to the technical essence and the achieved result is ATP
соб получени окисей диалкил-, например диметил-4-оксифенипфосфинов, который заключаетс в том, что диалки1Ь-4- -метоксифенилфосфин обрабатывают 48%- ной бромистоводородной кислотой при нагревании до 150-160 С в атмосфере аргона с последующим окислением полученного диалкид-4-оксифенипфосфина перекисью водородаJ2j. Выход конечного продукта составл ет 54% от теоретического .by preparing dialkyl- oxides, for example, dimethyl-4-hydroxypheniphosphines, which means that dialkyl-4-methoxyphenylphosphine is treated with 48% hydrobromic acid when heated to 150-160 ° C under argon atmosphere, followed by oxidation of the resulting dialkide-4- hydroxypheniphosphine hydrogen peroxide J2j. The yield of the final product is 54% of the theoretical.
.Недостатки этого способа - многостадийность процесса, необходимость использовани большого избытка бромистоводородной кислоты, что приводит к значительному осмолению и затрудн ет выделение продуктов из реакционной массы , а также невысокий выход продукте.The disadvantages of this method are the multistage process, the need to use a large excess of hydrobromic acid, which leads to significant tarring and makes it difficult to isolate products from the reaction mass, as well as to a low yield.
Цель изобретени - упрощение процесса и повышение выхода продуктов.The purpose of the invention is to simplify the process and increase the yield of products.
Это достигаетс согласно описываемому способу получени окисей диалхип-4-оксифенилфосфинов , который заключав с в том, что окиси диалкип-4-хлорфенипThis is achieved according to the described method for producing dialip-4-hydroxyphenylphosphines, which concluded that dialkip-4-chlorophenip oxides
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762389598A SU620491A1 (en) | 1976-07-06 | 1976-07-06 | Method of obtaining oxides of dialkyl-4-oxyphenylphosphines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762389598A SU620491A1 (en) | 1976-07-06 | 1976-07-06 | Method of obtaining oxides of dialkyl-4-oxyphenylphosphines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU620491A1 true SU620491A1 (en) | 1978-08-25 |
Family
ID=20668586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU762389598A SU620491A1 (en) | 1976-07-06 | 1976-07-06 | Method of obtaining oxides of dialkyl-4-oxyphenylphosphines |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU620491A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6733698B2 (en) * | 2001-02-15 | 2004-05-11 | Pabu Services, Inc. | Mixture of mono-, bis- and tris-(hydroxyaryl) phosphine oxides useful to make polyglycidyl ethers or in epoxy compositions |
| US6887950B2 (en) | 2001-02-15 | 2005-05-03 | Pabu Services, Inc. | Phosphine oxide hydroxyaryl mixtures with novolac resins for co-curing epoxy resins |
-
1976
- 1976-07-06 SU SU762389598A patent/SU620491A1/en active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6733698B2 (en) * | 2001-02-15 | 2004-05-11 | Pabu Services, Inc. | Mixture of mono-, bis- and tris-(hydroxyaryl) phosphine oxides useful to make polyglycidyl ethers or in epoxy compositions |
| US6887950B2 (en) | 2001-02-15 | 2005-05-03 | Pabu Services, Inc. | Phosphine oxide hydroxyaryl mixtures with novolac resins for co-curing epoxy resins |
| US6955851B2 (en) | 2001-02-15 | 2005-10-18 | Pabu Services, Inc. | Hydroxyaryl phosphine oxides, glycidyl ethers and epoxy compositions, composites and laminates derived therefrom |
| US7202311B2 (en) | 2001-02-15 | 2007-04-10 | Great Lakes Corporation | Phosphine oxide hydroxyarl mixtures with novolac resins for co-curing epoxy resins |
| US7201957B2 (en) | 2001-02-15 | 2007-04-10 | Great Lakes Corporation | Phosphine oxide hydroxyaryl mixtures with novolac resins for co-curing epoxy resins |
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