DE1468849A1 - Verfahren zur Herstellung von 1,3-Diamino-tricyclo-(3.3.1.1?)-decanen - Google Patents
Verfahren zur Herstellung von 1,3-Diamino-tricyclo-(3.3.1.1?)-decanenInfo
- Publication number
- DE1468849A1 DE1468849A1 DE19621468849 DE1468849A DE1468849A1 DE 1468849 A1 DE1468849 A1 DE 1468849A1 DE 19621468849 DE19621468849 DE 19621468849 DE 1468849 A DE1468849 A DE 1468849A DE 1468849 A1 DE1468849 A1 DE 1468849A1
- Authority
- DE
- Germany
- Prior art keywords
- reaction
- decanes
- diamino
- preparation
- div
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 13
- 229910021529 ammonia Inorganic materials 0.000 claims description 6
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- 239000010452 phosphate Substances 0.000 claims description 3
- 125000001424 substituent group Chemical group 0.000 claims description 3
- 125000005278 alkyl sulfonyloxy group Chemical group 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 claims 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims 1
- 239000011295 pitch Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 19
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- 125000004432 carbon atom Chemical group C* 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000012429 reaction media Substances 0.000 description 5
- 238000005915 ammonolysis reaction Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- -1 benzenesulfonyloxy Chemical group 0.000 description 3
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 3
- 150000004985 diamines Chemical group 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000005727 Friedel-Crafts reaction Methods 0.000 description 1
- 239000007818 Grignard reagent Substances 0.000 description 1
- 102100033070 Histone acetyltransferase KAT6B Human genes 0.000 description 1
- 101100019690 Homo sapiens KAT6B gene Proteins 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 description 1
- 125000005279 aryl sulfonyloxy group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- DGUOMLICEVFHLS-UHFFFAOYSA-N decane;dihydrobromide Chemical compound Br.Br.CCCCCCCCCC DGUOMLICEVFHLS-UHFFFAOYSA-N 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 150000004795 grignard reagents Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- PUGUQINMNYINPK-UHFFFAOYSA-N tert-butyl 4-(2-chloroacetyl)piperazine-1-carboxylate Chemical compound CC(C)(C)OC(=O)N1CCN(C(=O)CCl)CC1 PUGUQINMNYINPK-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 1
- 125000005424 tosyloxy group Chemical group S(=O)(=O)(C1=CC=C(C)C=C1)O* 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/02—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation
- C07C5/03—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of non-aromatic carbon-to-carbon double bonds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
- C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
- C07C5/29—Rearrangement of carbon atoms in the hydrocarbon skeleton changing the number of carbon atoms in a ring while maintaining the number of rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper
- C07C2523/74—Iron group metals
- C07C2523/755—Nickel
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- C07C2527/06—Halogens; Compounds thereof
- C07C2527/08—Halides
- C07C2527/10—Chlorides
- C07C2527/11—Hydrogen chloride
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- C07C2527/06—Halogens; Compounds thereof
- C07C2527/125—Compounds comprising a halogen and scandium, yttrium, aluminium, gallium, indium or thallium
- C07C2527/126—Aluminium chloride
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2603/00—Systems containing at least three condensed rings
- C07C2603/56—Ring systems containing bridged rings
- C07C2603/58—Ring systems containing bridged rings containing three rings
- C07C2603/60—Ring systems containing bridged rings containing three rings containing at least one ring with less than six members
- C07C2603/66—Ring systems containing bridged rings containing three rings containing at least one ring with less than six members containing five-membered rings
- C07C2603/68—Dicyclopentadienes; Hydrogenated dicyclopentadienes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2603/00—Systems containing at least three condensed rings
- C07C2603/56—Ring systems containing bridged rings
- C07C2603/58—Ring systems containing bridged rings containing three rings
- C07C2603/70—Ring systems containing bridged rings containing three rings containing only six-membered rings
- C07C2603/74—Adamantanes
-
- 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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14772861A | 1961-10-26 | 1961-10-26 | |
| US33195663A | 1963-12-19 | 1963-12-19 | |
| US365134A US3283001A (en) | 1961-10-26 | 1964-05-05 | 1-aminoadamantane and process for purifying same |
| US373825A US3256329A (en) | 1961-10-26 | 1964-06-09 | Process for preparing bridgehead-substituted bicyclo [2. 2. 2] octane and tricyclo [3. 3. 1. 13, 7] decane amines and diamines |
| US418890A US3274274A (en) | 1961-10-26 | 1964-12-16 | Adamantane process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1468849A1 true DE1468849A1 (de) | 1969-01-02 |
Family
ID=27538312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19621468849 Pending DE1468849A1 (de) | 1961-10-26 | 1962-10-26 | Verfahren zur Herstellung von 1,3-Diamino-tricyclo-(3.3.1.1?)-decanen |
Country Status (14)
| Country | Link |
|---|---|
| US (3) | US3283001A (en:Method) |
| AT (1) | AT278742B (en:Method) |
| BE (1) | BE657334A (en:Method) |
| BR (1) | BR6464835D0 (en:Method) |
| CH (2) | CH479534A (en:Method) |
| DE (1) | DE1468849A1 (en:Method) |
| DK (1) | DK123976B (en:Method) |
| FI (1) | FI43070B (en:Method) |
| FR (2) | FR1345138A (en:Method) |
| GB (4) | GB971406A (en:Method) |
| IL (1) | IL22644A (en:Method) |
| LU (1) | LU47597A1 (en:Method) |
| NL (1) | NL143204B (en:Method) |
| SE (2) | SE334350B (en:Method) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3414615A (en) * | 1966-02-03 | 1968-12-03 | Du Pont | 4-trifluoromethylbicyclo[2.2.2]-octane-1-amines and oct-2-ene-1-amines |
| US3391142A (en) * | 1966-02-09 | 1968-07-02 | Lilly Co Eli | Adamantyl secondary amines |
| US3475433A (en) * | 1966-02-25 | 1969-10-28 | Du Pont | Selected 13,14-diazatricyclo-(6.4.1.1**2,7) tetradecanes and diazatricyclo(6.4.1.1**2,7) tetradecatetraenes and their preparation |
| DE1294371B (de) * | 1966-12-21 | 1969-05-08 | Penicillin Ges Dauelsberg & Co | Verfahren zur Herstellung von 1-Aminoadamantan und dessen N-Alkyl- bzw. N-Cyclohexylderivaten |
| US3496228A (en) * | 1967-02-16 | 1970-02-17 | Smithkline Corp | Aminotricyclononanes and the salts thereof |
| US3789089A (en) * | 1968-12-17 | 1974-01-29 | Sun Research Development | Haloadamantanes |
| DE2638731A1 (de) * | 1976-08-27 | 1978-03-02 | Bayer Ag | Cycloaliphatische diamine |
| US4301043A (en) * | 1976-12-25 | 1981-11-17 | Idemitsu Kosan Company Limited | Sublimable perfume compositions |
| JP2825604B2 (ja) * | 1990-04-11 | 1998-11-18 | 三井化学株式会社 | メチレン架橋されたポリアリールアミンの製造方法 |
| US5274135A (en) * | 1991-09-20 | 1993-12-28 | The Dow Chemical Company | Process for preparing aminobenzocyclobutenes |
| TWI551573B (zh) * | 2014-06-03 | 2016-10-01 | Cpc Corp Taiwan | Preparation of adamantane |
| CN105175213A (zh) * | 2015-10-20 | 2015-12-23 | 山东玉皇化工有限公司 | 一种碳五双环戊二烯加氢的方法 |
| CN109206320B (zh) * | 2017-06-29 | 2021-04-06 | 江苏英力科技发展有限公司 | 一种连续生产金刚烷胺盐酸盐的方法 |
| CN114585629B (zh) * | 2019-11-06 | 2024-10-01 | 伊士曼化工公司 | 制备双环[2.2.2]辛烷-1,4-二醇的方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB458511A (en) * | 1935-07-01 | 1936-12-22 | Ig Farbenindustrie Ag | Improvements in the manufacture and production of amines and amides |
| US2183499A (en) * | 1937-04-01 | 1939-12-12 | Sharples Solvents Corp | Manufacture of amines |
| US2261002A (en) * | 1941-06-17 | 1941-10-28 | Du Pont | Organic nitrogen compounds |
| US2390597A (en) * | 1942-12-05 | 1945-12-11 | Carbide & Carbon Chem Corp | Insecticides |
| US2434063A (en) * | 1945-07-13 | 1948-01-06 | Roy R Birchfield | Master cylinder for hydraulic brakes |
| US2716134A (en) * | 1950-04-19 | 1955-08-23 | Eastman Kodak Co | N, n, n', n'-tetrasubstituted diamines |
| US2972631A (en) * | 1953-09-14 | 1961-02-21 | Glidden Co | Preparation of verbenyl compounds |
| US2937211A (en) * | 1958-10-17 | 1960-05-17 | Du Pont | Chemical process |
| DE1197091B (de) * | 1960-08-25 | 1965-07-22 | Studiengesellschaft Kohle Mbh | Verfahren zur Herstellung von N-(tertiaer Alkyl)-aminen |
| US3128316A (en) * | 1962-08-07 | 1964-04-07 | Sun Oil Co | Reaction of tricyclic perhydroatromatic hydrocarbons |
-
1962
- 1962-10-19 GB GB39626/62A patent/GB971406A/en not_active Expired
- 1962-10-26 FR FR913482A patent/FR1345138A/fr not_active Expired
- 1962-10-26 DE DE19621468849 patent/DE1468849A1/de active Pending
-
1964
- 1964-05-05 US US365134A patent/US3283001A/en not_active Expired - Lifetime
- 1964-06-09 US US373825A patent/US3256329A/en not_active Expired - Lifetime
- 1964-11-26 BR BR164835/64A patent/BR6464835D0/pt unknown
- 1964-12-09 CH CH114168A patent/CH479534A/de not_active IP Right Cessation
- 1964-12-09 CH CH1590664A patent/CH462150A/de unknown
- 1964-12-10 AT AT08101/67A patent/AT278742B/de not_active IP Right Cessation
- 1964-12-16 FR FR998843A patent/FR1426321A/fr not_active Expired
- 1964-12-16 GB GB51266/64A patent/GB1092806A/en not_active Expired
- 1964-12-16 US US418890A patent/US3274274A/en not_active Expired - Lifetime
- 1964-12-16 GB GB30869/66A patent/GB1092808A/en not_active Expired
- 1964-12-16 GB GB30868/66A patent/GB1092807A/en not_active Expired
- 1964-12-17 NL NL646414720A patent/NL143204B/xx not_active IP Right Cessation
- 1964-12-17 LU LU47597D patent/LU47597A1/xx unknown
- 1964-12-18 IL IL22644A patent/IL22644A/xx unknown
- 1964-12-18 BE BE657334D patent/BE657334A/xx unknown
- 1964-12-18 SE SE15363/64A patent/SE334350B/xx unknown
- 1964-12-18 FI FI2696/64A patent/FI43070B/fi active
- 1964-12-18 SE SE15435/67A patent/SE334355B/xx unknown
-
1968
- 1968-02-12 DK DK54068AA patent/DK123976B/da unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1092807A (en) | 1967-11-29 |
| NL143204B (nl) | 1974-09-16 |
| BR6464835D0 (pt) | 1973-08-02 |
| US3283001A (en) | 1966-11-01 |
| GB1092806A (en) | 1967-11-29 |
| IL22644A (en) | 1968-07-25 |
| DE1468785B2 (de) | 1975-06-12 |
| FI43070B (en:Method) | 1970-10-01 |
| US3274274A (en) | 1966-09-20 |
| LU47597A1 (en:Method) | 1965-12-17 |
| US3256329A (en) | 1966-06-14 |
| BE657334A (en:Method) | 1965-06-18 |
| SE334355B (en:Method) | 1971-04-26 |
| FR1426321A (fr) | 1966-01-28 |
| SE334350B (en:Method) | 1971-04-26 |
| DK123976B (da) | 1972-08-28 |
| DE1468785A1 (de) | 1969-05-14 |
| CH462150A (de) | 1968-09-15 |
| NL6414720A (en:Method) | 1965-06-21 |
| GB971406A (en) | 1964-09-30 |
| AT278742B (de) | 1970-02-10 |
| CH479534A (de) | 1969-10-15 |
| FR1345138A (fr) | 1963-12-06 |
| GB1092808A (en) | 1967-11-29 |
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