CH438282A - Verfahren zur Herstellung von Azulenen - Google Patents
Verfahren zur Herstellung von AzulenenInfo
- Publication number
- CH438282A CH438282A CH4876557A CH4876557A CH438282A CH 438282 A CH438282 A CH 438282A CH 4876557 A CH4876557 A CH 4876557A CH 4876557 A CH4876557 A CH 4876557A CH 438282 A CH438282 A CH 438282A
- Authority
- CH
- Switzerland
- Prior art keywords
- ether
- mixture
- azulenes
- azulene
- sodium
- Prior art date
Links
- 150000001545 azulenes Chemical class 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 14
- 238000002360 preparation method Methods 0.000 title claims description 6
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 8
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- UIBRZOTWRMHYFJ-UHFFFAOYSA-N 1,2-dihydroazulene Chemical compound C1=CC=C[C]2[CH]CCC2=C1 UIBRZOTWRMHYFJ-UHFFFAOYSA-N 0.000 claims description 3
- 125000004043 oxo group Chemical group O=* 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 50
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 33
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical class C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 30
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 20
- 239000000203 mixture Substances 0.000 description 20
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 18
- 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 15
- 239000011734 sodium Substances 0.000 description 15
- 229910052708 sodium Inorganic materials 0.000 description 15
- CUFNKYGDVFVPHO-UHFFFAOYSA-N azulene Chemical compound C1=CC=CC2=CC=CC2=C1 CUFNKYGDVFVPHO-UHFFFAOYSA-N 0.000 description 14
- HFACYLZERDEVSX-UHFFFAOYSA-N benzidine Chemical compound C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 description 14
- 238000004821 distillation Methods 0.000 description 12
- UGNWTBMOAKPKBL-UHFFFAOYSA-N tetrachloro-1,4-benzoquinone Chemical compound ClC1=C(Cl)C(=O)C(Cl)=C(Cl)C1=O UGNWTBMOAKPKBL-UHFFFAOYSA-N 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 11
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 10
- 239000003208 petroleum Substances 0.000 description 10
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 10
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 9
- 238000002844 melting Methods 0.000 description 9
- 230000008018 melting Effects 0.000 description 9
- 239000011541 reaction mixture Substances 0.000 description 9
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 8
- 239000012071 phase Substances 0.000 description 8
- 229960000587 glutaral Drugs 0.000 description 7
- OISVCGZHLKNMSJ-UHFFFAOYSA-N 2,6-dimethylpyridine Chemical compound CC1=CC=CC(C)=N1 OISVCGZHLKNMSJ-UHFFFAOYSA-N 0.000 description 6
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- FUSUHKVFWTUUBE-UHFFFAOYSA-N buten-2-one Chemical compound CC(=O)C=C FUSUHKVFWTUUBE-UHFFFAOYSA-N 0.000 description 6
- 238000006356 dehydrogenation reaction Methods 0.000 description 6
- 230000007935 neutral effect Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- YNGDWRXWKFWCJY-UHFFFAOYSA-N 1,4-Dihydropyridine Chemical compound C1C=CNC=C1 YNGDWRXWKFWCJY-UHFFFAOYSA-N 0.000 description 4
- YOWQWFMSQCOSBA-UHFFFAOYSA-N 2-methoxypropene Chemical compound COC(C)=C YOWQWFMSQCOSBA-UHFFFAOYSA-N 0.000 description 4
- RVJUDUADOMIBMH-UHFFFAOYSA-N 4-methylazulene Chemical compound CC1=CC=CC=C2C=CC=C12 RVJUDUADOMIBMH-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- -1 cyclic acetals Chemical class 0.000 description 4
- FJKIXWOMBXYWOQ-UHFFFAOYSA-N ethenoxyethane Chemical compound CCOC=C FJKIXWOMBXYWOQ-UHFFFAOYSA-N 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- BSKHPKMHTQYZBB-UHFFFAOYSA-N 2-methylpyridine Chemical compound CC1=CC=CC=N1 BSKHPKMHTQYZBB-UHFFFAOYSA-N 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 239000012259 ether extract Substances 0.000 description 3
- 239000013067 intermediate product Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- RGZLGZNMQMWYIM-UHFFFAOYSA-N 5-methylazulene Chemical compound CC1=CC=CC2=CC=CC2=C1 RGZLGZNMQMWYIM-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000012074 organic phase Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 235000002639 sodium chloride Nutrition 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- UPMAOXLCTXPPAG-UHFFFAOYSA-N 1,2,3,4,4a,5,6,7,8,8a-decahydronaphthalen-2-ol Chemical compound C1CCCC2CC(O)CCC21 UPMAOXLCTXPPAG-UHFFFAOYSA-N 0.000 description 1
- VAIFYHGFLAPCON-UHFFFAOYSA-N 1,3-Diacetylpropane Chemical compound CC(=O)CCCC(C)=O VAIFYHGFLAPCON-UHFFFAOYSA-N 0.000 description 1
- WSQIUQGZWDQMEL-UHFFFAOYSA-N 1-methylazulene Chemical compound C1=CC=CC=C2C(C)=CC=C21 WSQIUQGZWDQMEL-UHFFFAOYSA-N 0.000 description 1
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- NFSKAGHRZCYASJ-UHFFFAOYSA-N 2-methyl-1-propan-2-ylazulene Chemical compound CC(C)C1=C2C=CC=CC=C2C=C1C NFSKAGHRZCYASJ-UHFFFAOYSA-N 0.000 description 1
- ZANXWZZBWKAYCK-UHFFFAOYSA-N 2-methyl-3-propan-2-ylcyclopenta-1,3-diene Chemical compound CC(C)C1=CCC=C1C ZANXWZZBWKAYCK-UHFFFAOYSA-N 0.000 description 1
- XWKFPIODWVPXLX-UHFFFAOYSA-N 2-methyl-5-methylpyridine Natural products CC1=CC=C(C)N=C1 XWKFPIODWVPXLX-UHFFFAOYSA-N 0.000 description 1
- ITQTTZVARXURQS-UHFFFAOYSA-N 3-methylpyridine Chemical compound CC1=CC=CN=C1 ITQTTZVARXURQS-UHFFFAOYSA-N 0.000 description 1
- YSKMWUCVEPTNQM-UHFFFAOYSA-N 4,8-dimethylazulene Chemical compound CC1=CC=CC(C)=C2C=CC=C12 YSKMWUCVEPTNQM-UHFFFAOYSA-N 0.000 description 1
- UCAQDIQSNVAWBD-UHFFFAOYSA-N 5-Oxohexanal Chemical compound CC(=O)CCCC=O UCAQDIQSNVAWBD-UHFFFAOYSA-N 0.000 description 1
- 238000006418 Brown reaction Methods 0.000 description 1
- PGTKVMVZBBZCKQ-UHFFFAOYSA-N Fulvene Chemical compound C=C1C=CC=C1 PGTKVMVZBBZCKQ-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- 238000005684 Liebig rearrangement reaction Methods 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- UPCCBSOQEHJDCX-UHFFFAOYSA-N [cyclopenta-1,3-dien-1-yl(phenyl)methyl]benzene Chemical compound C1C=CC=C1C(C=1C=CC=CC=1)C1=CC=CC=C1 UPCCBSOQEHJDCX-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000003172 aldehyde group Chemical group 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- CGZZMOTZOONQIA-UHFFFAOYSA-N cycloheptanone Chemical compound O=C1CCCCCC1 CGZZMOTZOONQIA-UHFFFAOYSA-N 0.000 description 1
- NFDFQCUYFHCNBW-SCGPFSFSSA-N dienestrol Chemical group C=1C=C(O)C=CC=1\C(=C/C)\C(=C\C)\C1=CC=C(O)C=C1 NFDFQCUYFHCNBW-SCGPFSFSSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- NFWSQSCIDYBUOU-UHFFFAOYSA-N methylcyclopentadiene Chemical compound CC1=CC=CC1 NFWSQSCIDYBUOU-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003222 pyridines Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/04—Saturated compounds containing keto groups bound to acyclic carbon atoms
- C07C49/185—Saturated compounds containing keto groups bound to acyclic carbon atoms containing —CHO groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C13/00—Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings
- C07C13/28—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof
- C07C13/32—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings
- C07C13/47—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings with a bicyclo ring system containing ten carbon atoms
- C07C13/52—Azulenes; Completely or partially hydrogenated azulenes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
- C07C2/86—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon
- C07C2/862—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon the non-hydrocarbon contains only oxygen as hetero-atoms
- C07C2/865—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon the non-hydrocarbon contains only oxygen as hetero-atoms the non-hydrocarbon is an ether
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
- C07C45/511—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups
- C07C45/512—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups the singly bound functional group being a free hydroxyl group
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
- C07C45/511—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups
- C07C45/515—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups the singly bound functional group being an acetalised, ketalised hemi-acetalised, or hemi-ketalised hydroxyl group
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/56—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds
- C07C45/57—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds with oxygen as the only heteroatom
- C07C45/60—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds with oxygen as the only heteroatom in six-membered rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C47/00—Compounds having —CHO groups
- C07C47/02—Saturated compounds having —CHO groups bound to acyclic carbon atoms or to hydrogen
- C07C47/12—Saturated compounds having —CHO groups bound to acyclic carbon atoms or to hydrogen containing more than one —CHO group
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C47/00—Compounds having —CHO groups
- C07C47/20—Unsaturated compounds having —CHO groups bound to acyclic carbon atoms
- C07C47/26—Unsaturated compounds having —CHO groups bound to acyclic carbon atoms containing hydroxy groups
- C07C47/263—Unsaturated compounds having —CHO groups bound to acyclic carbon atoms containing hydroxy groups acyclic
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2602/00—Systems containing two condensed rings
- C07C2602/02—Systems containing two condensed rings the rings having only two atoms in common
- C07C2602/14—All rings being cycloaliphatic
- C07C2602/26—All rings being cycloaliphatic the ring system containing ten carbon atoms
- C07C2602/30—Azulenes; Hydrogenated azulenes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pyridine Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST11462A DE1027200B (de) | 1956-07-25 | 1956-07-25 | Verfahren zur Herstellung von Azulenen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH438282A true CH438282A (de) | 1967-06-30 |
Family
ID=7455403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH4876557A CH438282A (de) | 1956-07-25 | 1957-07-24 | Verfahren zur Herstellung von Azulenen |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH438282A (da) |
| DE (1) | DE1027200B (da) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115448821A (zh) * | 2021-06-09 | 2022-12-09 | 信越化学工业株式会社 | 卤代乙醛缩醛化合物及制备方法及由其制备(2-环戊烯基)的乙酸酯和乙酸化合物的方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE942326C (de) * | 1953-08-08 | 1956-05-03 | Dr Dr E H Karl Ziegler | Verfahren zur Herstellung von Azulenen |
-
1956
- 1956-07-25 DE DEST11462A patent/DE1027200B/de active Granted
-
1957
- 1957-07-24 CH CH4876557A patent/CH438282A/de unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115448821A (zh) * | 2021-06-09 | 2022-12-09 | 信越化学工业株式会社 | 卤代乙醛缩醛化合物及制备方法及由其制备(2-环戊烯基)的乙酸酯和乙酸化合物的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1027200C2 (da) | 1958-09-18 |
| DE1027200B (de) | 1958-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2115718C3 (de) | Verfahren zur Herstellung von Vincamin und Isovincamin | |
| DE2356655C3 (de) | Substituierte Phenoxy-α-methylpropionsäure-Derivate, Verfahren zu ihrer Herstellung und diese enthaltende Arzneimittel | |
| DE1668369A1 (de) | Verfahren zum Herstellen von 17alpha-(3'-Hydroxypropyl)-4-androsten-3ss,17ss-diol | |
| DE1131665B (de) | Verfahren zur Herstellung von Aminosteroidverbindungen | |
| DE1027200B (de) | Verfahren zur Herstellung von Azulenen | |
| CH417630A (de) | Verfahren zur Herstellung von neuen cyclischen 2,3-O-Acetalen und 2,3-O-Ketalen von Butantetrolestern | |
| DE818942C (de) | Verfahren zur Herstellung von ª‰-Carotin | |
| DE892442C (de) | Verfahren zur Reinigung von o-Methoxyphenylaceton | |
| DE2263880A1 (de) | Verfahren zur aufspaltung eines cyclopentenolons in die optischen isomeren | |
| DE3236144A1 (de) | Verfahren zur herstellung von vinkaminsaeureestern | |
| DE942326C (de) | Verfahren zur Herstellung von Azulenen | |
| AT333741B (de) | Verfahren zur herstellung der neuen 5-fluor-2-methyl-1-(4'-methylsulfinylbenzyliden)-3-indenyl-essigsaure | |
| AT269886B (de) | Verfahren zur Herstellung neuer Benzomorphanderivate und ihrer Salze | |
| DE878642C (de) | Verfahren zur Cyclisierung von Geranylacetonen zu 2, 5, 5, 9-Tetramethyl-hexahydrochromonen bzw. 3-Oxytetrahydrojononen | |
| DE1195314B (de) | Verfahren zur Herstellung von neuen Pyridinverbindungen | |
| AT160395B (de) | Verfahren zur Darstellung von Monohalogenverbindungen gesättigter Ketone bzw. von ungesättigten Ketonen der Pregnanreihe. | |
| DE1002337C2 (de) | Verfahren zur Herstellung von Hydrophenanthrylcarbonsaeuren | |
| DE718745C (de) | Verfahren zur Herstellung von Dialkyldi- (oxyphenyl) -aethylenverbindungen | |
| DE887502C (de) | Verfahren zur Herstellung von ungesaettigten Dicarbonsaeureanhydriden und der entsprechenden Dicarbonsaeuren | |
| DE697759C (de) | Verfahren zur Gewinnung von einen ª‰-alkylierten Pyridinkern enthaltenden Verbindungen aus diese enthaltenden Gemischen | |
| AT216156B (de) | Verfahren zur Herstellung von Polyhydrophenanthren-Verbindungen | |
| DE1050763B (de) | Synthese von Vitamin-A-Säure und ihren Estern | |
| DE1768644C (de) | Verfahren zur Herstellung von Acrylophenonen | |
| DE1543419C (de) | Verfahren zur Herstellung von 4 Hydroxy 3 methyl 2 cyclopenten 1 onen | |
| AT166231B (de) | Verfahren zur Herstellung von neuen basischen Thioacetaten |