SU124936A1 - Method of producing O, O-dialkyl-5-alkyl phosphates - Google Patents

Method of producing O, O-dialkyl-5-alkyl phosphates

Info

Publication number
SU124936A1
SU124936A1 SU623652A SU623652A SU124936A1 SU 124936 A1 SU124936 A1 SU 124936A1 SU 623652 A SU623652 A SU 623652A SU 623652 A SU623652 A SU 623652A SU 124936 A1 SU124936 A1 SU 124936A1
Authority
SU
USSR - Soviet Union
Prior art keywords
dialkyl
producing
alkyl phosphates
mol
sodium
Prior art date
Application number
SU623652A
Other languages
Russian (ru)
Inventor
Н.К. Близнюк
К.А. Петров
Original Assignee
Н.К. Близнюк
К.А. Петров
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Н.К. Близнюк, К.А. Петров filed Critical Н.К. Близнюк
Priority to SU623652A priority Critical patent/SU124936A1/en
Application granted granted Critical
Publication of SU124936A1 publication Critical patent/SU124936A1/en

Links

Description

Предметом изобретени   вл етс  способ получени  0,0-диалкил-5алкилфосфатов , относ щихс  к области производства сельскохоз йственных  дохимикатов.The subject of the invention is a process for the preparation of 0,0-dialkyl-5 alkylphosphates belonging to the field of production of agricultural chemicals.

Предлагаемый способ получени  0,0-диалкил-5-алкилфосфатов аключаетс  во взаимодействии солей диалкилфосфористых кислот с диалкилхлорфосфатами и диалкилдисульфидами в инертном органическом растворителе при температуре 20°-100°.The proposed method for the preparation of 0,0-dialkyl-5-alkylphosphates involves the interaction of the salts of dialkyl phosphorous acids with dialkyl chlorophosphates and dialkyl disulfides in an inert organic solvent at a temperature of 20 ° -100 °.

Преимущества предлагаемого способа заключаютс  в доступности исходного сырь , в достаточно высоких выходах конечных продуктов , а также в отсутствии побочных продуктов реакции.The advantages of the proposed method are in the availability of the feedstock, in sufficiently high yields of the final products, as well as in the absence of reaction by-products.

Пример. К смеси 1 г-мол натрийдиэтилфосфата (из 23 г металлического натри  и 138 г диэтилфосфористой кислоты) и 1 г-мол. диэтилдисульфида в 500 мл сухого толуола при перемешивании медленно добавл ют 1 г-мол диэтилхлорфосфата. Температуру реакционной массы поддерживают в пределах 25-30°, а после смещени  реагентов выдерживают при той же температуре в течение 3 час. Хлористый натрий отдел ют центрифугированием или добавлением к образовавшейс  суспензии при охлаждении воды до растворени  соли. Затем органический слой отдел ют и высушивают над прокаленным сульфатом натри . Остаток после отгонки 1астворител  перегон ют в вакууме.Example. To a mixture of 1 gm mol of sodium diethyl phosphate (from 23 g of metallic sodium and 138 g of diethylphosphorous acid) and 1 g mol. 1 g-mol of diethyl chlorophosphate was slowly added with 500 ml of dry toluene with diethyl disulfide. The temperature of the reaction mass is maintained within the range of 25-30 °, and after displacement of the reactants it is maintained at the same temperature for 3 hours. The sodium chloride is separated by centrifugation or by adding water to the suspension while cooling until the salt has dissolved. The organic layer is then separated and dried over calcined sodium sulfate. The residue after distillation of the solvent was distilled in vacuo.

Получают 290 г (73,5Vo) триэтилтиофосфата, т. кип. 108-112Get 290 g (73,5Vo) triethylthiophosphate, so Kip. 108-112

(10 мм); п 1,4565; d° 1,1075.(10 mm); p 1.4565; d ° 1.1075.

Предмет изобретени .The subject matter of the invention.

Способ получени  0,0-диалкил-5-алкилфосфатов, отличающийс  тем, что, с целью удешевлени  процесса, смесь щелочной соли диалкилфосфористой кислоты с диалкилдисульфидом подвергают взаимодействию с диалкилхлорфосфатом при температурах 20-100° в инертном растворителе.A method for producing 0,0-dialkyl-5-alkyl phosphates, characterized in that, in order to reduce the cost of the process, a mixture of an alkali salt of dialkyl phosphorous acid with dialkyl disulfide is reacted with dialkyl chlorophosphate at temperatures of 20-100 ° in an inert solvent.

SU623652A 1959-03-31 1959-03-31 Method of producing O, O-dialkyl-5-alkyl phosphates SU124936A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU623652A SU124936A1 (en) 1959-03-31 1959-03-31 Method of producing O, O-dialkyl-5-alkyl phosphates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU623652A SU124936A1 (en) 1959-03-31 1959-03-31 Method of producing O, O-dialkyl-5-alkyl phosphates

Publications (1)

Publication Number Publication Date
SU124936A1 true SU124936A1 (en) 1959-11-30

Family

ID=48396340

Family Applications (1)

Application Number Title Priority Date Filing Date
SU623652A SU124936A1 (en) 1959-03-31 1959-03-31 Method of producing O, O-dialkyl-5-alkyl phosphates

Country Status (1)

Country Link
SU (1) SU124936A1 (en)

Similar Documents

Publication Publication Date Title
US2862017A (en) Benzyl esters of thiophosphoric acids and their production
US2647140A (en) Process for the production of dialkylthiophosphates
US1945183A (en) Manufacture of alkoxy derivatives of phosphorous acid chlorides
US2690451A (en) Method for preparation of sulfur-containing esters of phosphoric acid
US2652416A (en) Reaction of lactones with trialkyl phosphite
US2898365A (en) Process for manufacture of areneboronic acids
SU124936A1 (en) Method of producing O, O-dialkyl-5-alkyl phosphates
US2928859A (en) Alkylation of acids with alkyl orthocarboxylates
US2984669A (en) N-methyl-benzoxazolone esters of thiophosphoric and dithiophosphoric acids
US3082239A (en) Thiophosphoric acid esters and process for their production
US2692893A (en) Method of preparing dialkyl chlorothiophosphates
US2407279A (en) Method for the preparation of neutral esters of phosphoric acid
US3033891A (en) Mono salts of o-hydrocarbyl-carboalkylthiol phosphonic acids
US2818420A (en) Separation of alkali metal salts of mono-and dialkyl acid phosphates
US2903474A (en) Production of spiro heterocyclic phosphorus-containing compounds
US4242511A (en) Production of amine salts of acid O,S-dialkylthiophosphoric acid
US3775470A (en) Process for the preparation of organophosphonyl dichlorides
US2495799A (en) Chloroalkyl phosphorous oxy and sulfodichlorides
US3770853A (en) Marshall dann
US3699195A (en) Production of diesters of 2-hydroxyethylphosphonic acid
US3053900A (en) Preparation of phosphine sulfides
US2775612A (en) Preparation of cyano organicsulfonyl chlorides
US3705215A (en) Preparation of 2-chloroethylphosphonate diesters
US3110727A (en) Method of producing methylphosphonic acid and derivatives
US3478133A (en) Cyclic phosphate esters and process for producing same