SU248675A1 - - Google Patents
Info
- Publication number
- SU248675A1 SU248675A1 SU1252840A SU1252840A SU248675A1 SU 248675 A1 SU248675 A1 SU 248675A1 SU 1252840 A SU1252840 A SU 1252840A SU 1252840 A SU1252840 A SU 1252840A SU 248675 A1 SU248675 A1 SU 248675A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- phosphorus
- iodine
- benzyl
- mixture
- tribenzylphosphine
- Prior art date
Links
- 238000009835 boiling Methods 0.000 description 4
- 229910052740 iodine Inorganic materials 0.000 description 4
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 4
- 239000011630 iodine Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- IFXORIIYQORRMJ-UHFFFAOYSA-N tribenzylphosphane Chemical compound C=1C=CC=CC=1CP(CC=1C=CC=CC=1)CC1=CC=CC=C1 IFXORIIYQORRMJ-UHFFFAOYSA-N 0.000 description 3
- KCXMKQUNVWSEMD-UHFFFAOYSA-N Benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 description 2
- FAIAAWCVCHQXDN-UHFFFAOYSA-N Phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L Sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229940073608 benzyl chloride Drugs 0.000 description 2
- JDOXUXDGEFQQII-UHFFFAOYSA-N benzyl(dichloro)phosphane Chemical compound ClP(Cl)CC1=CC=CC=C1 JDOXUXDGEFQQII-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic Effects 0.000 description 2
- XYFCBTPGUUZFHI-UHFFFAOYSA-N phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000004429 atoms Chemical group 0.000 description 1
- RFJHCAHSOWEFNE-UHFFFAOYSA-N benzyl(chloro)phosphane Chemical class ClPCC1=CC=CC=C1 RFJHCAHSOWEFNE-UHFFFAOYSA-N 0.000 description 1
- 150000005524 benzylchlorides Chemical class 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- GEQHSJWVCCJNMP-UHFFFAOYSA-N dibenzyl(chloro)phosphane Chemical compound C=1C=CC=CC=1CP(Cl)CC1=CC=CC=C1 GEQHSJWVCCJNMP-UHFFFAOYSA-N 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- -1 trichloride phosphorus Chemical compound 0.000 description 1
Description
Предлагаетс способ получени трибензилфосфиноксидов общей формулы Y-m, где X, У и Z - Н,СПз, Галоид, п, т, р - целое число от 1 до 5, примен емых в качестве пестицидов, пенообразователей дл извлечени т желых металлов и т. д. Известен способ лолучеци трибензилфосфиноксидов из бензилхлоридов, красного фосфора :и каталитических количеств йода при нагревании до 170-180°С с последующей об- 20 работкой реакционной смеси водным раствором сульфита натри при кип чении. .Однако при осуществлении этого способа расходуетс большое количество йода и возникает необходимость его регенерации.25 С целью упрощени процесса, предложен способ получени трибензилфосфиноксидов путем взаимодействи бензилхлорфОсфинов с хлористым бензилом .и элементарным фосфором при нагревании до 170-220°С с одновре- зо 5 10 15 менной отгонкой образующегос треххлористого фосфора, с последующей обработкой реакционной массы щелочами при кип чении в воде или в органическом растворителе, например спирте или ацетоне. В качестве бензилхлорфосфинов используют бензилдихлорфосфин, дибензилхлорфосфин , реакционную массу, полученную из бензилхлоридов , белого фосфора и треххлористого фосфора. Процесс можно проводить в присутствии каталитических количеств йода. Пример 1. Трибензилфосфиноксид. А. Смесь 0,03 г моль бензилдихлорфосфина , 0,04 г-атом белого фосфора, 0,135 г-моль бензилхлорида и 76 мг (1 мол. %) йода кип т т при перемешивании реакционной массы в атмосфере азота до прекращени отгонки треххлорнстого фосфора (1,5-2 час). Смесь вакуумируют при 130-140°С/15- 20 лш рт. ст.. Остаток охлаждают до 75-80°С, раствор ют в 15 мл 70%-ного спирта и при перемещивании и температуре 75-80°С к нему порци ми прибавл ют твердую гидроокись кали до щелочной среды (5-6 г). Затем кип т т смесь 30-40 мин, охлаждают, кристаллы отфильтровывают, промывают 3-5 мл спирта, затем водой до отсутстви в промывных водах хлор она, сушат на воздухе и полуA method for the preparation of tribenzylphosphine oxides of the general formula Ym is proposed, where X, Y and Z are H, SPZ, Halogen, n, t, p is an integer from 1 to 5 used as pesticides, frothers for the extraction of heavy metals, etc. There is a known method of luchyce tribenzylphosphine oxides from benzyl chlorides, red phosphorus: and catalytic amounts of iodine when heated to 170–180 ° C, followed by treatment of the reaction mixture with an aqueous solution of sodium sulfite at boiling. However, the implementation of this method consumes a large amount of iodine and the need arises for its regeneration. 15 By distilling off the resulting phosphorus trichloride, followed by treating the reaction mixture with alkalis at boiling in water or in an organic solvent, for example, alcohol or acetone. Benzyl dichlorophosphine, dibenzyl chlorophosphine, the reaction mass obtained from benzyl chloride, white phosphorus and phosphorus trichloride are used as benzyl chlorophosphines. The process can be carried out in the presence of catalytic amounts of iodine. Example 1. Tribenzylphosphine. A. A mixture of 0.03 g mole of benzyldichlorophosphine, 0.04 g atom of white phosphorus, 0.135 g mole of benzyl chloride and 76 mg (1 mol.%) Iodine is boiled while stirring the reaction mass under nitrogen atmosphere until termination of trichloride phosphorus ( 1.5-2 hours). The mixture is vacuum at 130-140 ° C / 15-20 lsh mercury. The residue is cooled to 75-80 ° C, dissolved in 15 ml of 70% alcohol, and when moved and at a temperature of 75-80 ° C, solid potassium hydroxide is added in portions to an alkaline medium (5-6 g) . Then the mixture is boiled for 30-40 minutes, cooled, the crystals are filtered, washed with 3-5 ml of alcohol, then chlorine is washed with water, air is dried and the floor is dried.
Publications (1)
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SU248675A1 true SU248675A1 (en) |
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