SU347326A1 - METHOD OF OBTAINING 3,5,3 ', 5'-TETRABROM-2,4,2', 4'- TETRAOXYDIPHENYL - Google Patents
METHOD OF OBTAINING 3,5,3 ', 5'-TETRABROM-2,4,2', 4'- TETRAOXYDIPHENYLInfo
- Publication number
- SU347326A1 SU347326A1 SU1174108A SU1174108A SU347326A1 SU 347326 A1 SU347326 A1 SU 347326A1 SU 1174108 A SU1174108 A SU 1174108A SU 1174108 A SU1174108 A SU 1174108A SU 347326 A1 SU347326 A1 SU 347326A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- tetraoxydiphenyl
- obtaining
- tetrabrom
- salts
- sulfuric acid
- Prior art date
Links
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- NLKNQRATVPKPDG-UHFFFAOYSA-M Potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 229940071870 hydroiodic acid Drugs 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drugs Drugs 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000630 rising Effects 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- 229940001607 sodium bisulfite Drugs 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N tin hydride Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
Description
Данное изобретение относитс к способу получени 3,5,3,5-тетрабром-2,4,2,4-тетраоксидифенила , который может быть использован Б качестве лекарственного нрепарата.This invention relates to a process for the preparation of 3,5,3,5-tetrabromo-2,4,2,4-tetraoxydiphenyl, which can be used as a drug.
Известен способ получени 3,5,3,5-тетрабром-2 ,4,2,4-тетраоксидифенила путем восстановлени трибромрезохинона оловом в разбавленной Кислоте прн нагревании.A known method for the preparation of 3,5,3,5-tetrabromo-2, 4,2,4-tetroxydiphenyl by reduction of tribromomesoquinone with tin in diluted acid prn heating.
С целью упрощени технологии процесса и улучшени качества целевого продукта предложен способ получени 3,5,3,5-тетрабром2 ,4,2,4-тетраоксидифенила путем восстановлени трибромрезохниона сернистой кислотой или ее сол ми в присутствии катализатора - йодистоводородной кислоты или ее солей- в среде органического растворител -разбавител .In order to simplify the process technology and improve the quality of the target product, a method has been proposed for obtaining 3,5,3,5-tetrabrom2, 4,2,4-tetraoxydiphenyl by reducing the tribromo-rescognion with sulfuric acid or its salts in the presence of a catalyst, hydroiodic acid or its salts organic solvent diluent.
Пример. К суспеизии 100 г трибромрезохинона в 800 мл этилового спирта при перемеши вании добавл ют 2 г йодистого кали , Example. To a suspension of 100 g of tribromresoquinone in 800 ml of ethanol, while stirring, add 2 g of potassium iodide,
30 мл 50%-ной серной кислогы, затем постепенно 150 лл 40%-ного раствора бисульфита натри , не допуска повышени температуры выше 30°С. После часового перемешнваип в реакционную массу добавл ют 800 мл воды, отфильтровывают выделившийс осадок, промывают его оперва 50%-иым водным спиртом, затем водой. Выход 51,3 г или 65,7%; т. пл. 280° С.30 ml of 50% sulfuric acid, then gradually 150 l of 40% sodium bisulfite solution, to prevent the temperature from rising above 30 ° C. After one hour vortexing, 800 ml of water is added to the reaction mass, the separated precipitate is filtered off, washed first with 50% aqueous alcohol, then with water. Yield 51.3 g or 65.7%; m.p. 280 ° C.
Предмет изобретени Subject invention
Способ получени 3,5,3,5-тетр;и) ,4,2,4-тетраокспдифенила путем восстановлени тибро.мрезохинона, отличающийс тем, что, с целью упрош.ени технологии процесса, в качестве восстановител примен ют сернистую кислоту или ее соли и процесс ведут в присутствии катализатора - йодистоводородной кислоты или ее солей - в среде органического растворител -разбавител .The method of producing 3,5,3,5-tetra; i), 4,2,4-tetraoxidiphenyl by reduction of tibro.mresoquinone, characterized in that, in order to simplify the process technology, sulfuric acid or its salts and process are carried out in the presence of a catalyst — hydroiodic acid or its salts — in an environment of an organic solvent — a diluent.
Publications (1)
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SU347326A1 true SU347326A1 (en) |
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