CS196523B1 - Process for preparing aziridines - Google Patents
Process for preparing aziridines Download PDFInfo
- Publication number
- CS196523B1 CS196523B1 CS108174A CS108174A CS196523B1 CS 196523 B1 CS196523 B1 CS 196523B1 CS 108174 A CS108174 A CS 108174A CS 108174 A CS108174 A CS 108174A CS 196523 B1 CS196523 B1 CS 196523B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- solution
- ether
- mmol
- formula
- sulfuric acid
- Prior art date
Links
- 150000001541 aziridines Chemical class 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title description 6
- 238000000034 method Methods 0.000 claims abstract description 15
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 5
- 125000000753 cycloalkyl group Chemical group 0.000 claims abstract description 4
- 150000001336 alkenes Chemical class 0.000 claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 12
- 125000004432 carbon atom Chemical group C* 0.000 claims description 7
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 7
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 claims description 5
- 125000004429 atom Chemical group 0.000 claims description 5
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000011541 reaction mixture Substances 0.000 claims description 3
- 125000005036 alkoxyphenyl group Chemical group 0.000 claims description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052794 bromium Inorganic materials 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 15
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract description 9
- 150000001414 amino alcohols Chemical class 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 239000000654 additive Substances 0.000 abstract description 2
- 150000004985 diamines Chemical class 0.000 abstract description 2
- 239000003814 drug Substances 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract description 2
- 229920003023 plastic Polymers 0.000 abstract description 2
- 239000011814 protection agent Substances 0.000 abstract description 2
- 239000002904 solvent Substances 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- 125000000623 heterocyclic group Chemical group 0.000 abstract 2
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 150000002170 ethers Chemical class 0.000 abstract 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 76
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 45
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 41
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 15
- 238000000605 extraction Methods 0.000 description 15
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 12
- 229910052938 sodium sulfate Inorganic materials 0.000 description 12
- 235000011152 sodium sulphate Nutrition 0.000 description 12
- 238000009835 boiling Methods 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 9
- QDHHCQZDFGDHMP-UHFFFAOYSA-N Chloramine Chemical compound ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 description 8
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 8
- 239000005708 Sodium hypochlorite Substances 0.000 description 7
- 239000000284 extract Substances 0.000 description 7
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical class [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 7
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 7
- RWRDLPDLKQPQOW-UHFFFAOYSA-N Pyrrolidine Chemical compound C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 description 6
- 229910021529 ammonia Inorganic materials 0.000 description 6
- GVPKNZSJQDDDGN-UHFFFAOYSA-N n-chloropropan-1-amine Chemical compound CCCNCl GVPKNZSJQDDDGN-UHFFFAOYSA-N 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 6
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 5
- IZQAUUVBKYXMET-UHFFFAOYSA-N 2-bromoethanamine Chemical compound NCCBr IZQAUUVBKYXMET-UHFFFAOYSA-N 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 description 4
- JSYGRUBHOCKMGQ-UHFFFAOYSA-N dichloramine Chemical compound ClNCl JSYGRUBHOCKMGQ-UHFFFAOYSA-N 0.000 description 4
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 4
- SJGFVFYSANQLLE-UHFFFAOYSA-N n-chlorocyclohexanamine Chemical compound ClNC1CCCCC1 SJGFVFYSANQLLE-UHFFFAOYSA-N 0.000 description 4
- 125000004433 nitrogen atom Chemical group N* 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- -1 carbon-substituted aziridines Chemical class 0.000 description 3
- 238000005660 chlorination reaction Methods 0.000 description 3
- LRJIFGKTBBJNIA-UHFFFAOYSA-N n-chlorobutan-1-amine Chemical compound CCCCNCl LRJIFGKTBBJNIA-UHFFFAOYSA-N 0.000 description 3
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- 150000001540 azides Chemical class 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000003776 cleavage reaction Methods 0.000 description 2
- HGCIXCUEYOPUTN-UHFFFAOYSA-N cyclohexene Chemical compound C1CCC=CC1 HGCIXCUEYOPUTN-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- JXSJBGJIGXNWCI-UHFFFAOYSA-N diethyl 2-[(dimethoxyphosphorothioyl)thio]succinate Chemical compound CCOC(=O)CC(SP(=S)(OC)OC)C(=O)OCC JXSJBGJIGXNWCI-UHFFFAOYSA-N 0.000 description 2
- 239000000543 intermediate Substances 0.000 description 2
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229940061319 ovide Drugs 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000006798 ring closing metathesis reaction Methods 0.000 description 2
- 230000007017 scission Effects 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1 -dodecene Natural products CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 1
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical group ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- AIPKEAOFPLLFHI-UHFFFAOYSA-N 1,2-dimethyl-2-phenylaziridine Chemical compound CN1CC1(C)C1=CC=CC=C1 AIPKEAOFPLLFHI-UHFFFAOYSA-N 0.000 description 1
- WDZMBYZWOSXOIZ-UHFFFAOYSA-N 1-butyl-2-phenylaziridine Chemical compound CCCCN1CC1C1=CC=CC=C1 WDZMBYZWOSXOIZ-UHFFFAOYSA-N 0.000 description 1
- SYZVQXIUVGKCBJ-UHFFFAOYSA-N 1-ethenyl-3-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC(C=C)=C1 SYZVQXIUVGKCBJ-UHFFFAOYSA-N 0.000 description 1
- ZHKJHQBOAJQXQR-UHFFFAOYSA-N 1H-azirine Chemical class N1C=C1 ZHKJHQBOAJQXQR-UHFFFAOYSA-N 0.000 description 1
- FLIPVKQYNWMJSJ-UHFFFAOYSA-N 2-phenyl-1-propylaziridine Chemical compound CCCN1CC1C1=CC=CC=C1 FLIPVKQYNWMJSJ-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 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
- 239000004157 Nitrosyl chloride Substances 0.000 description 1
- YNPNZTXNASCQKK-UHFFFAOYSA-N Phenanthrene Natural products C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000011260 aqueous acid Substances 0.000 description 1
- 125000002619 bicyclic group Chemical group 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000005077 diacylhydrazine group Chemical group 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000012259 ether extract Substances 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002391 heterocyclic compounds Chemical class 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- NPURPEXKKDAKIH-UHFFFAOYSA-N iodoimino(oxo)methane Chemical compound IN=C=O NPURPEXKKDAKIH-UHFFFAOYSA-N 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- JEHCHYAKAXDFKV-UHFFFAOYSA-J lead tetraacetate Chemical compound CC(=O)O[Pb](OC(C)=O)(OC(C)=O)OC(C)=O JEHCHYAKAXDFKV-UHFFFAOYSA-J 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 125000006178 methyl benzyl group Chemical group 0.000 description 1
- NQMRYBIKMRVZLB-UHFFFAOYSA-N methylamine hydrochloride Chemical compound [Cl-].[NH3+]C NQMRYBIKMRVZLB-UHFFFAOYSA-N 0.000 description 1
- ANWSRMULJWOSHB-UHFFFAOYSA-N n,n-dibromobutan-1-amine Chemical compound CCCCN(Br)Br ANWSRMULJWOSHB-UHFFFAOYSA-N 0.000 description 1
- 125000002560 nitrile group Chemical group 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- VPCDQGACGWYTMC-UHFFFAOYSA-N nitrosyl chloride Chemical compound ClN=O VPCDQGACGWYTMC-UHFFFAOYSA-N 0.000 description 1
- 235000019392 nitrosyl chloride Nutrition 0.000 description 1
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 150000004843 oxaziridines Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 208000022177 perioral myoclonia with absences Diseases 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- CRWJEUDFKNYSBX-UHFFFAOYSA-N sodium;hypobromite Chemical compound [Na+].Br[O-] CRWJEUDFKNYSBX-UHFFFAOYSA-N 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D203/00—Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom
- C07D203/26—Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D203/00—Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom
- C07D203/04—Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings
- C07D203/06—Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D203/08—Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring nitrogen atom
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD16886673A DD108532A1 (de) | 1973-02-15 | 1973-02-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS196523B1 true CS196523B1 (en) | 1980-03-31 |
Family
ID=5490084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS108174A CS196523B1 (en) | 1973-02-15 | 1974-02-14 | Process for preparing aziridines |
Country Status (6)
| Country | Link |
|---|---|
| CH (1) | CH592622A5 (de) |
| CS (1) | CS196523B1 (de) |
| DD (1) | DD108532A1 (de) |
| DE (1) | DE2354470A1 (de) |
| HU (1) | HU168342B (de) |
| SU (1) | SU530025A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1219865A (en) * | 1982-05-14 | 1987-03-31 | Leo Alig | Aziridine phenethanolamine derivatives |
| US20100191000A1 (en) * | 2007-06-20 | 2010-07-29 | Basf Se | Method for synthesizing an n-unsubstituted or n-substituted aziridine |
-
1973
- 1973-02-15 DD DD16886673A patent/DD108532A1/xx unknown
- 1973-10-31 DE DE19732354470 patent/DE2354470A1/de active Pending
- 1973-11-12 SU SU1972064A patent/SU530025A1/ru active
-
1974
- 1974-02-14 CS CS108174A patent/CS196523B1/cs unknown
- 1974-02-15 CH CH217274A patent/CH592622A5/xx not_active IP Right Cessation
- 1974-02-15 HU HUWI000251 patent/HU168342B/hu unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SU530025A1 (ru) | 1976-09-30 |
| HU168342B (de) | 1976-03-28 |
| DD108532A1 (de) | 1974-09-20 |
| DE2354470A1 (de) | 1974-08-22 |
| CH592622A5 (de) | 1977-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4960904A (en) | Process for the preparation of cyclic sulphates | |
| US6180799B1 (en) | Sulfalation of tetraol | |
| US3931216A (en) | Process for the manufacture of 2-arylamino-2-imidazoline derivatives and their salts | |
| CS196523B1 (en) | Process for preparing aziridines | |
| Heine et al. | The isomerization of some aziridine derivatives. III. A new synthesis of 2-imidazolines | |
| Kuehne et al. | Preparation of N, N-diethylcyanoethynylamine and its reactions with phenyl isocyanate and phenylsulfene | |
| US4329303A (en) | Process for the preparation of 1-oxo-phospholane-chloro-hydrins | |
| JP2578797B2 (ja) | N−(スルホニルメチル)ホルムアミド類の製造法 | |
| US3210336A (en) | Production of 1-substituted homopiperazines | |
| US4022780A (en) | Process for the manufacture of indole derivatives | |
| US4585863A (en) | Process for the manufacture of 2-isopropyl-4-methyl-6-hydroxypyrimidine | |
| JP2678758B2 (ja) | 新規なプロパン誘導体 | |
| SU509223A3 (ru) | Способ получени производных1-карбамоилимидазола | |
| US4082760A (en) | Derivatives of 2h,3h-benzimidazo(1,2-b)oxazole | |
| US3879408A (en) | Process for preparing anhydropenicillins | |
| Tret'yakov et al. | Nitrodeiodination of polyiodopyrazoles: a convenient synthesis of 4-nitroiodopyrazoles | |
| US3192199A (en) | Process for the production of 1-cycloalkyl derivatives of 1, 4-benzodiazepine | |
| US3452043A (en) | Production of 1-n,n-dimethylcarbamoyl-5 - methyl - 3 - n,n-dimethyl-carbamoyloxy-pyrazole | |
| SU453842A3 (de) | ||
| US4287343A (en) | Preparation of N-cyanoimidate herbicide intermediates | |
| US3249606A (en) | Process of preparing beta-amino-arylethylketone picrates | |
| JPS61189231A (ja) | 4,4′−ジアミノジフエニルエタン誘導体の製造法 | |
| US3221050A (en) | 2-cycloalkylcarbonylamido-5-halobenzophenones | |
| US4577023A (en) | Diazabicyclo (2,2,2) octadiones | |
| US3502653A (en) | Process for preparing 1,4-diazacycloheptenes |