SU530647A3 - The method of obtaining 3-dialkoxyphosphonomethyl-1-glycidylhydanthion - Google Patents
The method of obtaining 3-dialkoxyphosphonomethyl-1-glycidylhydanthionInfo
- Publication number
- SU530647A3 SU530647A3 SU1902762A SU1902762A SU530647A3 SU 530647 A3 SU530647 A3 SU 530647A3 SU 1902762 A SU1902762 A SU 1902762A SU 1902762 A SU1902762 A SU 1902762A SU 530647 A3 SU530647 A3 SU 530647A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- mol
- mixture
- distillation
- drop
- viscous
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 238000004821 distillation Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- OKIZCWYLBDKLSU-UHFFFAOYSA-M N,N,N-Trimethylmethanaminium chloride Chemical compound [Cl-].C[N+](C)(C)C OKIZCWYLBDKLSU-UHFFFAOYSA-M 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 125000003700 epoxy group Chemical group 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims 2
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims 1
- 125000004432 carbon atom Chemical group C* 0.000 claims 1
- 239000003518 caustics Substances 0.000 claims 1
- 229910052736 halogen Inorganic materials 0.000 claims 1
- 229910000039 hydrogen halide Inorganic materials 0.000 claims 1
- 239000012433 hydrogen halide Substances 0.000 claims 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 claims 1
- YACKEPLHDIMKIO-UHFFFAOYSA-N methylphosphonic acid Chemical compound CP(O)(O)=O YACKEPLHDIMKIO-UHFFFAOYSA-N 0.000 claims 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 4
- -1 tetramethylammonium halide Chemical class 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000008346 aqueous phase Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010533 azeotropic distillation Methods 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Inorganic materials [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- OJURWUUOVGOHJZ-UHFFFAOYSA-N methyl 2-[(2-acetyloxyphenyl)methyl-[2-[(2-acetyloxyphenyl)methyl-(2-methoxy-2-oxoethyl)amino]ethyl]amino]acetate Chemical compound C=1C=CC=C(OC(C)=O)C=1CN(CC(=O)OC)CCN(CC(=O)OC)CC1=CC=CC=C1OC(C)=O OJURWUUOVGOHJZ-UHFFFAOYSA-N 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000013076 target substance Substances 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/645—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having two nitrogen atoms as the only ring hetero atoms
- C07F9/6503—Five-membered rings
- C07F9/6506—Five-membered rings having the nitrogen atoms in positions 1 and 3
- C07F9/65068—Five-membered rings having the nitrogen atoms in positions 1 and 3 condensed with carbocyclic rings or carbocyclic ring systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/645—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having two nitrogen atoms as the only ring hetero atoms
- C07F9/6503—Five-membered rings
- C07F9/6506—Five-membered rings having the nitrogen atoms in positions 1 and 3
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/6558—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom containing at least two different or differently substituted hetero rings neither condensed among themselves nor condensed with a common carbocyclic ring or ring system
- C07F9/65586—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom containing at least two different or differently substituted hetero rings neither condensed among themselves nor condensed with a common carbocyclic ring or ring system at least one of the hetero rings does not contain nitrogen as ring hetero atom
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/14—Polycondensates modified by chemical after-treatment
- C08G59/1433—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds
- C08G59/1438—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds containing oxygen
- C08G59/145—Compounds containing one epoxy group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/53—Phosphorus bound to oxygen bound to oxygen and to carbon only
- C08K5/5317—Phosphonic compounds, e.g. R—P(:O)(OR')2
- C08K5/5333—Esters of phosphonic acids
- C08K5/5373—Esters of phosphonic acids containing heterocyclic rings not representing cyclic esters of phosphonic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Emergency Medicine (AREA)
- General Chemical & Material Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Epoxy Compounds (AREA)
- Epoxy Resins (AREA)
Description
11рисадок, имеющих большое npaKTifiecKoesHdчение .11springs having a large npaKTifiecKoesHd.
Согласно насто щему изобретению способ т олучени 3-диалкоксифосфонометил-1-гли1ДИ7 дилгидантионов общей формулы UAccording to the present invention, the method for producing 3-dialkoxyphosphonomethyl-1-gly1D7 dilhydanions of the general formula U
О R,0 x-O-ZxO R, 0 x-O-Zx
P-LllrN N-CH,-CH-eH,X п о9 г он P-LllrN N-CH, -CH-eH, X p o9 g it
II
онhe
аключаетс во взаимодействии соответствую, щего З-галоген-2-оксипропильного производного уреида с отшепл юшим галогенводр|род средством. В качестве отщепл ющего .. галогенводород средства обычно используют водный раствор едкого натра. Можно примен ть также безводную гидроокись натри н ругие сильнооС1 овные реагенты, например гидроокись кали , бари , кальци , карбонат натри или кали .It is connected with the interaction of the corresponding 3-halogen-2-hydroxypropyl derivative of ureid with an unstable halogen-water agent. An aqueous solution of caustic soda is usually used as a splitting off. Anhydrous sodium hydroxide can also be used with other high strength oxygen reactants such as potassium hydroxide, barium, calcium, sodium or potassium carbonate.
Исходные .соединени можно получать взаимодействием соответствующих 3-диалкоксифосфонометилгидантионов с эпигалогенгидрином в присутствии в качестве катализатора тетраметиламмонийгалогенида и ввоить в основную реакцию без выделени в чистом виде.The starting compounds can be obtained by reacting the corresponding 3-dialkoxyphosphonomethylhydanthions with epihalohydrin in the presence of tetramethylammonium halide as a catalyst and introducing it into the main reaction without isolation in pure form.
Целевые соединени представл ют собой Кристаллические или жидкие вещества, кото- )8 рые в чистом состо нии прозрачны и бесцветны . Очистку можно производить перекристаллизацией или вакуумной перегонкой, I Новые вещества можно использовать в качестве огнестойких и невоспламен ющих- .& с добавок к обычным эпоксидным смолам; в больщинстве случаев они имеют низкую в зкость, в результате чего одновременно оказывают определенное действие и как реакционноспособные разбавители,46The target compounds are Crystalline or liquid substances that are clear and colorless when pure. Purification can be carried out by recrystallization or vacuum distillation. I New substances can be used as fire-resistant and non-flammable-. &Amp; with additives to conventional epoxy resins; in most cases, they have a low viscosity, as a result of which they simultaneously have a certain effect as reactive diluents, 46
Пример 1. Получение 3-(ди-метоксифосфонометил )-1-глицидил-5,5-диметилгидантиона .Example 1. Preparation of 3- (di-methoxyphosphonomethyl) -1-glycidyl-5,5-dimethylhydanthion.
Смесь из 10О г диметилового эфира {5,5-диметилгидантионил-3 )-метанфосфоновой кислоты (0,4 моль), 555 г эпихлоргидрина (6,0 моль ) и 0,5 г тетраметиламмонийхлорида в течение 1 час перемещивают при 118 С A mixture of 10O g of dimethyl ester {5,5-dimethylhydanthionyl-3) -methanephosphonic acid (0.4 mol), 555 g of epichlorohydrin (6.0 mol) and 0.5 g of tetramethylammonium chloride are transferred at 118 C for 1 hour
Смесь охлаждают до 6О С; при сильном пе-алThe mixture is cooled to 6 ° C; with a strong pe-al
ремешивании в вакууме, получаемом с помо-, шью водоструйн го насоса, в течение 3 час 25 alн по капл м добавл ют 35,2 г 50%ного водного раствора едкого натра (0,44 моль); причем наход щуюс в реакционной смеси BO-Wstirring in a vacuum obtained with the aid of a water-jet pump, 35.2 g of a 50% aqueous solution of caustic soda (0.44 mol) are added dropwise over 3 hours to 25 aln; and in the reaction mixture BO-W
ду )1опрерывно удал ют азеотропной циркул ционной перегх)нкой. Затем продолжают переrx-iitKy ещ в течение 4G мин до окончани реакции , затем смесь охлаждают до 2О С, отфм .1ьт1ювывают выпавшую поваренную соль . ЦЦdo) Continuously remove the azeotropic circulation superfluous foil. Then the perx-iitKy is continued for 4G minutes until the end of the reaction, then the mixture is cooled to 2 ° C, turning off the salt that has precipitated out. CC
и экстрагируют эпихлоргидриновый раствор путем встр хивани с 100 мл водного 1ОО% ного раствора N d И д РО ц. После отделени водной фазы, органическую фазу еще два раза экстрагируют встр хиванием с 5О мл воды (каждый раз) и отдел ют водную фазу, Эпихлоргидриновый раствор конденсируют при 80 С в вакууме водоструйного насоса. Затем продукт сущат при 8О С и 10 --торп до посто нства веса.and extracting the epichlorohydrin solution by shaking with 100 ml of an aqueous 1OO% solution of N d AND d PO c. After separating the aqueous phase, the organic phase is extracted twice more by shaking with 5 O ml of water (each time) and the aqueous phase is separated, the Epichlorohydrin solution is condensed at 80 ° C in a water jet vacuum. Then the product is present at 8 ° С and 10 - sec to constant weight.
Получают 95 г (77,6%) желтой, прозрачной , в зкой смолы, содержание эпоксид-( ных групп которой соответствует 3,04эпок сидным эквивалентам на кг (92,9%), Сырф продукт содержит 0,55 % С1 и 10,15% Р95 g (77.6%) of a yellow, transparent, viscous resin, the content of epoxy groups (of which corresponds to 3.04 epok per equivalent per kg (92.9%)) is obtained. The product contains 0.55% C1 and 10, 15% P
Целевое вещество можно очищать перекристаллизацией и.з толуола. Получают бес-цветные кристаллы с т.пл. ,5°С и содержанием эпоксидных групп 3,21 эпоксидных эквивалентов на кг {98,2%),The target substance can be purified by recrystallization from toluene. Get colorless crystals with so pl. , 5 ° C and the content of epoxy groups 3.21 epoxy equivalents per kg {98.2%),
Найдено, %: С 42;7; Н 6,2; N9,3; Р 1О,55.Found,%: C 42; 7; H 6.2; N9.3; P 1O, 55.
Вычислено, %: С 43,14; Н 6,25; N 9,15 Р 10,11.Calculated,%: C 43.14; H 6.25; N 9.15 P 10.11.
Пример 2, Получение 3-{диэтоксигExample 2, Preparation of 3- {diethoxy
фосфонометил)-1-глицидил-5,5--диметилги- дантиона.phosphonomethyl) -1-glycidyl-5,5 - dimethylgidantione.
139 г диэтилового эфира (5,5-диметили гидантионил-З )-метанфосфоновой кислоты -(0,5 моль), 694 г эпихлоргидрина (7,5 мол И 0,5 тетраметиламмоний хлорида в течение 1 час перемешивают при 118-119 С. Затем смесь охлаждают до 60 С и при сильном перемешивании в вакууме, получаемом с помощью водоструйного насоса, в течение 2 час 55 мин по капл м добавл ют 44 г 5О%-но1Х водного раствора едкого натра. Наход щую-. с в смеси воду аналогично примеру 1 удал ют азеотропной перегонкой. ПерерабатьшаIOT согласно примеру 1 и получают 162,4 г желтой, в зкой смолы (97,2%) с содержанием эпоксидных групп 2,99 эпоксидных эквивалентов на кг (1ОО%) и в зкостью 1150с пауз (при 25 С),.139 g of diethyl ether (5,5-dimethylhydanthion-3) -methanephosphonic acid - (0.5 mol), 694 g of epichlorohydrin (7.5 mol and 0.5 tetramethylammonium chloride for 1 hour, stirred at 118-119 C. The mixture is then cooled to 60 ° C and with vigorous stirring in a vacuum obtained using a water-jet pump, 44 g of a 5O% -1X aqueous sodium hydroxide solution is added dropwise over 2 hours 55 minutes. The water in the mixture is the same. Example 1 is removed by azeotropic distillation. Recycling the IOT according to Example 1 yields 162.4 g of a yellow, viscous resin (97.2%) with a content of poxide groups 2.99 epoxy equivalents per kg (1OO%) and viscosity 1150s pauses (at 25 C) ,.
Сырой продукт очищают перегонкой при175° и О,3 торр.The crude product is purified by distillation at 175 ° and O, 3 torr.
Найдено, %; С 46,93; Н 6,92; N 8,68; .Found,%; C 46.93; H 6.92; N 8.68; .
Вычислено, %: С 46,71; Н 6,93; 8,38; Р 9,27, Calculated,%: C 46.71; H 6.93; 8.38; R 9.27,
Пример 3. Получение 3-(диэтокси-г фосфонометил)-3-глицид ил-5,5-пентаметиленгидантиона .Example 3. Obtaining 3- (diethoxy-g phosphonomethyl) -3-glycide yl-5,5-pentamethylene hydanthion.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH489472 | 1972-04-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
SU530647A3 true SU530647A3 (en) | 1976-09-30 |
Family
ID=4284375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1902762A SU530647A3 (en) | 1972-04-04 | 1973-04-04 | The method of obtaining 3-dialkoxyphosphonomethyl-1-glycidylhydanthion |
Country Status (13)
Country | Link |
---|---|
JP (1) | JPS4913170A (en) |
AU (1) | AU5347373A (en) |
BE (1) | BE797689A (en) |
BR (1) | BR7302308D0 (en) |
DD (1) | DD106342A5 (en) |
DE (1) | DE2316383A1 (en) |
ES (1) | ES413277A1 (en) |
FR (1) | FR2179035A1 (en) |
GB (1) | GB1424402A (en) |
IT (1) | IT981865B (en) |
NL (1) | NL7304480A (en) |
SU (1) | SU530647A3 (en) |
ZA (1) | ZA732270B (en) |
-
1973
- 1973-03-19 AU AU53473/73A patent/AU5347373A/en not_active Expired
- 1973-03-28 GB GB1493673A patent/GB1424402A/en not_active Expired
- 1973-03-30 NL NL7304480A patent/NL7304480A/xx unknown
- 1973-03-30 BR BR732308A patent/BR7302308D0/en unknown
- 1973-04-02 DD DD169971A patent/DD106342A5/xx unknown
- 1973-04-03 BE BE129569A patent/BE797689A/en unknown
- 1973-04-03 ES ES413277A patent/ES413277A1/en not_active Expired
- 1973-04-03 ZA ZA732270A patent/ZA732270B/en unknown
- 1973-04-03 FR FR7311926A patent/FR2179035A1/fr not_active Withdrawn
- 1973-04-03 IT IT22542/73A patent/IT981865B/en active
- 1973-04-04 SU SU1902762A patent/SU530647A3/en active
- 1973-04-04 JP JP48038622A patent/JPS4913170A/ja active Pending
- 1973-04-30 DE DE2316383A patent/DE2316383A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
GB1424402A (en) | 1976-02-11 |
DD106342A5 (en) | 1974-06-12 |
ES413277A1 (en) | 1976-07-01 |
BR7302308D0 (en) | 1974-08-29 |
FR2179035A1 (en) | 1973-11-16 |
BE797689A (en) | 1973-10-03 |
DE2316383A1 (en) | 1973-10-18 |
JPS4913170A (en) | 1974-02-05 |
IT981865B (en) | 1974-10-10 |
AU5347373A (en) | 1974-09-19 |
ZA732270B (en) | 1974-01-30 |
NL7304480A (en) | 1973-10-08 |
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