JPS6015625B2 - パークロロジアザフルベンの製造法 - Google Patents
パークロロジアザフルベンの製造法Info
- Publication number
- JPS6015625B2 JPS6015625B2 JP50135736A JP13573675A JPS6015625B2 JP S6015625 B2 JPS6015625 B2 JP S6015625B2 JP 50135736 A JP50135736 A JP 50135736A JP 13573675 A JP13573675 A JP 13573675A JP S6015625 B2 JPS6015625 B2 JP S6015625B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- phosphorus
- reaction
- imidazole
- mixture
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- KYNIHVMCLDTMID-UHFFFAOYSA-N 3,4-dichloro-5-(dichloromethylidene)pyrazole Chemical compound ClC(Cl)=C1N=NC(Cl)=C1Cl KYNIHVMCLDTMID-UHFFFAOYSA-N 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Substances C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 14
- 230000000382 dechlorinating effect Effects 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 description 32
- 239000000203 mixture Substances 0.000 description 24
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical class [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 18
- 238000005660 chlorination reaction Methods 0.000 description 15
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 14
- 239000007858 starting material Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 12
- 229910052698 phosphorus Inorganic materials 0.000 description 11
- 239000011574 phosphorus Chemical class 0.000 description 11
- 239000003085 diluting agent Substances 0.000 description 10
- 238000004817 gas chromatography Methods 0.000 description 10
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 10
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 9
- 239000000460 chlorine Substances 0.000 description 9
- 229910052801 chlorine Inorganic materials 0.000 description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical class [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 8
- 238000001816 cooling Methods 0.000 description 8
- 229910052717 sulfur Inorganic materials 0.000 description 8
- 239000011593 sulfur Chemical class 0.000 description 8
- UGSWJXLFGYVBNI-UHFFFAOYSA-N 2,4,5-trichloro-2-(trichloromethyl)imidazole Chemical compound ClC1=NC(Cl)(C(Cl)(Cl)Cl)N=C1Cl UGSWJXLFGYVBNI-UHFFFAOYSA-N 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 7
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 239000000725 suspension Substances 0.000 description 7
- LXBGSDVWAMZHDD-UHFFFAOYSA-N 2-methyl-1h-imidazole Chemical compound CC1=NC=CN1 LXBGSDVWAMZHDD-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 208000015181 infectious disease Diseases 0.000 description 6
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 6
- 239000002244 precipitate Substances 0.000 description 5
- 238000010992 reflux Methods 0.000 description 5
- 239000007795 chemical reaction product Substances 0.000 description 4
- 238000004587 chromatography analysis Methods 0.000 description 4
- 238000004821 distillation Methods 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- PXJJSXABGXMUSU-UHFFFAOYSA-N disulfur dichloride Chemical compound ClSSCl PXJJSXABGXMUSU-UHFFFAOYSA-N 0.000 description 3
- 239000003701 inert diluent Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 238000001953 recrystallisation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005292 vacuum distillation Methods 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- QPUYECUOLPXSFR-UHFFFAOYSA-N 1-methylnaphthalene Chemical compound C1=CC=C2C(C)=CC=CC2=C1 QPUYECUOLPXSFR-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical class [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 241000209140 Triticum Species 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000001640 fractional crystallisation Methods 0.000 description 2
- 238000004508 fractional distillation Methods 0.000 description 2
- 238000002329 infrared spectrum Methods 0.000 description 2
- 238000004949 mass spectrometry Methods 0.000 description 2
- 229910052751 metal Chemical class 0.000 description 2
- 239000002184 metal Chemical class 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- UHPMCKVQTMMPCG-UHFFFAOYSA-N 5,8-dihydroxy-2-methoxy-6-methyl-7-(2-oxopropyl)naphthalene-1,4-dione Chemical compound CC1=C(CC(C)=O)C(O)=C2C(=O)C(OC)=CC(=O)C2=C1O UHPMCKVQTMMPCG-UHFFFAOYSA-N 0.000 description 1
- 229920001817 Agar Polymers 0.000 description 1
- 241000842962 Apoda limacodes Species 0.000 description 1
- 101100537937 Caenorhabditis elegans arc-1 gene Proteins 0.000 description 1
- 101100129500 Caenorhabditis elegans max-2 gene Proteins 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 244000241257 Cucumis melo Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 241000223218 Fusarium Species 0.000 description 1
- PHSPJQZRQAJPPF-UHFFFAOYSA-N N-alpha-Methylhistamine Chemical compound CNCCC1=CN=CN1 PHSPJQZRQAJPPF-UHFFFAOYSA-N 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 125000004054 acenaphthylenyl group Chemical group C1(=CC2=CC=CC3=CC=CC1=C23)* 0.000 description 1
- HXGDTGSAIMULJN-UHFFFAOYSA-N acetnaphthylene Natural products C1=CC(C=C2)=C3C2=CC=CC3=C1 HXGDTGSAIMULJN-UHFFFAOYSA-N 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 125000006267 biphenyl group Chemical group 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000007805 chemical reaction reactant Substances 0.000 description 1
- 239000012320 chlorinating reagent Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- -1 chloroform Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006298 dechlorination reaction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 125000003250 fulvenyl group Chemical class C1(=CC=CC1=C)* 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000003840 hydrochlorides Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- 238000002211 ultraviolet spectrum Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/96—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2454326.8 | 1974-11-15 | ||
| DE2454326A DE2454326C2 (de) | 1974-11-15 | 1974-11-15 | 4,5-Dichlor-2-(dichlormethylen)-2H-imidazol und ein Verfahren zu seiner Herstellung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5175071A JPS5175071A (en) | 1976-06-29 |
| JPS6015625B2 true JPS6015625B2 (ja) | 1985-04-20 |
Family
ID=5930973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50135736A Expired JPS6015625B2 (ja) | 1974-11-15 | 1975-11-13 | パークロロジアザフルベンの製造法 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4021443A (OSRAM) |
| JP (1) | JPS6015625B2 (OSRAM) |
| BE (1) | BE835536A (OSRAM) |
| CH (1) | CH612426A5 (OSRAM) |
| DE (1) | DE2454326C2 (OSRAM) |
| FR (1) | FR2291196A1 (OSRAM) |
| GB (1) | GB1475650A (OSRAM) |
| NL (1) | NL7513248A (OSRAM) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2550157A1 (de) * | 1975-11-07 | 1977-05-12 | Bayer Ag | Imidazolidindion-derivate, verfahren zu ihrer herstellung sowie ihre verwendung als pflanzenwachstumsregulatoren |
| CN109336756B (zh) * | 2018-11-20 | 2021-05-11 | 河南大学 | 一种卤代芳香烃的氢化脱卤方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB709887A (en) * | 1952-10-03 | 1954-06-02 | Dow Chemical Co | 1,3-dichloro-2,3,3-trifluoropropene |
| US2754336A (en) * | 1953-02-16 | 1956-07-10 | Kellogg M W Co | Process for the initiation of dehalogenation reactions |
| US3501286A (en) * | 1964-06-29 | 1970-03-17 | Shell Oil Co | Plant growth control |
| DE1670913A1 (de) * | 1967-08-19 | 1971-03-18 | Bayer Ag | Chlorierte N-Methylimidazole |
| US3697608A (en) * | 1968-10-02 | 1972-10-10 | Du Pont | Dechlorination process |
| BE786447A (fr) * | 1971-07-20 | 1973-01-19 | Ciba Geigy | Derives de l'imidazole utilisables comme produits antiparasitaires |
-
1974
- 1974-11-15 DE DE2454326A patent/DE2454326C2/de not_active Expired
-
1975
- 1975-10-21 GB GB4310075A patent/GB1475650A/en not_active Expired
- 1975-10-29 US US05/627,154 patent/US4021443A/en not_active Expired - Lifetime
- 1975-11-11 CH CH1458375A patent/CH612426A5/xx not_active IP Right Cessation
- 1975-11-12 NL NL7513248A patent/NL7513248A/xx not_active Application Discontinuation
- 1975-11-13 BE BE161837A patent/BE835536A/xx unknown
- 1975-11-13 JP JP50135736A patent/JPS6015625B2/ja not_active Expired
- 1975-11-14 FR FR7534906A patent/FR2291196A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| NL7513248A (nl) | 1976-05-18 |
| US4021443A (en) | 1977-05-03 |
| CH612426A5 (OSRAM) | 1979-07-31 |
| JPS5175071A (en) | 1976-06-29 |
| FR2291196B1 (OSRAM) | 1979-01-05 |
| DE2454326A1 (de) | 1976-05-20 |
| GB1475650A (en) | 1977-06-01 |
| FR2291196A1 (fr) | 1976-06-11 |
| DE2454326C2 (de) | 1983-04-14 |
| BE835536A (fr) | 1976-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IL44187A (en) | 5-acetamido-2,4 dimethyltrifluoromethanesulfonanilide and its preparation | |
| KR20020070473A (ko) | 퍼플루오로알카디엔의 제조 방법 | |
| JPS6015625B2 (ja) | パークロロジアザフルベンの製造法 | |
| JPH02180873A (ja) | 4,5―ジクロロ―6―エチルピリミジンの製造方法 | |
| US4164412A (en) | Perfluoroalkylsulfonamidoaryl compounds | |
| EP0147472B1 (en) | 4-chloro-4-methyl-5-methylene-1,3-dioxolan-2-one | |
| EP0608713B1 (de) | 2,3-Difluor-6-nitrobenzonitril und 2-Chlor-5,6-difluorbenzonitril, Verfahren zu deren Herstellung und ihre Verwendung zur Herstellung von 2,3,6-Trifluorbenzoesäure | |
| JP3101012B2 (ja) | 2−アリール−5−(トリフルオロメチル)ピロール化合物の製造方法 | |
| JPH0333697B2 (OSRAM) | ||
| JPS6032636B2 (ja) | ラクトンの製法 | |
| KR100302346B1 (ko) | 6-히드록시-2-옥소-1,2,3,4-테트라히드로퀴놀린의 제조방법 | |
| US5883258A (en) | Process for preparing 3-chlorobenzisothiazoles | |
| KR101276667B1 (ko) | 3,4-디클로로이소티아졸카복실산의 제조방법 | |
| Chambers et al. | Polyfluoroheterocyclic compounds. Part XVIII. Reactions of heptafluoro-quinoline and-isoquinoline and pentafluoropyridine with hydrogen halides | |
| US3346596A (en) | Tricyclic ketal compounds having biological activity | |
| JP2004026832A (ja) | 2−アセチル−γ−ブチロラクトン塩と塩素との水の存在下での反応による2−アセチル−2−クロロ−γ−ブチロラクトンの製造方法 | |
| US4263297A (en) | 3-Lower alkoxy-6-trichloromethylpyridazines and their use as fungicides | |
| US3246001A (en) | 3, 5-dichloro-2, 6-dimethyl-4-pyridinol | |
| JPS6028822B2 (ja) | 4−メチルイミダゾ−ル−5−カルボン酸イソプロピルエステルの製法 | |
| JP2951002B2 (ja) | 4−置換5−クロル−2−ヒドラジノチアゾール及びその製造用の中間体 | |
| US4086255A (en) | Perfluoroalkylsulfonamidoaryl compounds | |
| US3966812A (en) | Trichloroethylidene-bis-(isocyanide-dichloride) and process for making same | |
| EP0017264B1 (en) | Bicyclic lactams and a process for their preparation | |
| US4018784A (en) | Preparation of trichlorothiazole and intermediate | |
| EP0100956B1 (de) | Verfahren zur Herstellung von Dicyan |