EP1214283A1 - Herstellung von dibenzosuberenon-derivaten durch katalytische dehydrierung - Google Patents
Herstellung von dibenzosuberenon-derivaten durch katalytische dehydrierungInfo
- Publication number
- EP1214283A1 EP1214283A1 EP00960504A EP00960504A EP1214283A1 EP 1214283 A1 EP1214283 A1 EP 1214283A1 EP 00960504 A EP00960504 A EP 00960504A EP 00960504 A EP00960504 A EP 00960504A EP 1214283 A1 EP1214283 A1 EP 1214283A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carbon atoms
- straight
- chain
- radical
- palladium
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/587—Unsaturated compounds containing a keto groups being part of a ring
- C07C49/657—Unsaturated compounds containing a keto groups being part of a ring containing six-membered aromatic rings
- C07C49/683—Unsaturated compounds containing a keto groups being part of a ring containing six-membered aromatic rings having unsaturation outside the aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/587—Unsaturated compounds containing a keto groups being part of a ring
- C07C49/657—Unsaturated compounds containing a keto groups being part of a ring containing six-membered aromatic rings
- C07C49/665—Unsaturated compounds containing a keto groups being part of a ring containing six-membered aromatic rings a keto group being part of a condensed ring system
- C07C49/675—Unsaturated compounds containing a keto groups being part of a ring containing six-membered aromatic rings a keto group being part of a condensed ring system having three rings
Definitions
- the invention relates to a production process for dibenzosuberenone derivatives by catalytic dehydrogenation of dibenzosuberone derivatives.
- Dibenzosuberenone (5H-Dibenzo [a, d] cyclohepten-5-one) is an important raw material for the production of pharmaceutical ingredients.
- Dibenzosuberenone is used in the pharmaceutical industry as a raw material for various active pharmaceutical ingredients. These active ingredients are e.g. Amitriptyline and
- Dibenzosuberenon can, for example, by bromination of dibenzosuberon with
- N-bromosuccinimide and elimination of the brominated intermediate can be obtained (GB-A 2132618, US 3,448,102).
- the bromination can also be carried out with bromine (Chem. Ber. 1989, 122, 1595-1597).
- bromine Chem. Ber. 1989, 122, 1595-1597.
- Different possibilities are also known for debromination. For example, with sodium selenite (J.Chem.Soc, Chem.Commun. 1990, 730-732) or with chromium dichloride
- dibenzosuberenone e.g. photochemically (Tetrahedron 1994, 50, 8773-8780) or with a complex molybdenum compound (J.Chem.Soc, Perkin Trans. 2, 1993, 1923-1936).
- the present invention succeeded in overcoming the disadvantages mentioned and in providing a technically advantageous method.
- R 1 to R 10 are the same or different and are hydrogen, fluorine, chlorine, iodine, bromine,
- Cyan a straight-chain or branched aliphatic hydrocarbon radical having 1 to 8 carbon atoms, a straight-chain or branched
- R 1 1 denotes a straight-chain or branched alkyl radical having 1 to 8 carbon atoms
- R 12 represents a straight-chain or branched alkyl radical or acyl radical having 1 to 8 carbon atoms and
- X and Y are the same or different and are for
- R 13 represents a straight-chain or branched alkyl radical having 1 to 8 carbon atoms
- R 1 to R 10 are as defined above
- the process according to the invention is unproblematic to carry out when using problem-free reagents.
- Commercially available starting materials are also used.
- Straight-chain or branched aliphatic hydrocarbon radicals (R 1 to R 13 ) generally contain 1 to 8, preferably 1 to 6, particularly preferably 1 to 4, carbon atoms.
- the following radicals may be mentioned in detail: methyl, ethyl, propyl, iso-propyl, butyl, iso-butyl, pentyl, iso-pentyl, hexyl, iso-hexyl, heptyl, iso-heptyl, octyl and iso-octyl.
- Methyl, ethyl, propyl, iso-propyl, butyl, iso-butyl are preferred.
- Straight-chain or branched aliphatic acyl radicals (R 1 to R 12 ) generally contain 1 to 8, preferably 1 to 6, particularly preferably 1 to 4 carbon atoms. Preferred are: acyl, propionyl, butyryl, iso-butyryl.
- Aryl radicals are generally aromatic, cyclic hydrocarbon radicals with 6 carbon atoms. It is possible that several, e.g. 2 or 3 of the residues are condensed to a residue. Preferred are: phenyl, naphthyl.
- Hetaryl radicals are generally aromatic, cyclic hydrocarbon radicals having 2 to 5 carbon atoms and one or more, preferably one hetero atom. Heteroatoms can be, for example, nitrogen, oxygen and sulfur, preferably nitrogen. It is possible that several, e.g. 2 or 3 of the aryl and hetaryl residues are condensed to one residue.
- the following radicals may be mentioned in detail: furan, thiophene, pyrrole, pyridine, pyrazine, pyrimidine, indole, quinoline, iso-quinoline. Furan, thiophene, pyrrole, pyridine are preferred.
- Substituents of the aryl and hetaryl radicals can be, for example: alkyl, acyl,
- Dibenzosuberones for the process according to the invention are compounds of the formula
- R 1 to R 10 has the meaning given above.
- the dibenzosuberones for the process according to the invention are known per se (J. Org. Chem. 1994, 59, 7968-75).
- Elements of subgroup 8 which act catalytically are, for example, platinum, palladium, ruthenium and rhodium. Palladium is preferred.
- Carrier materials for the catalytically active elements of subgroup 8 are, for example, activated carbon and aluminum oxide. Activated carbon is preferred.
- catalysts from 0.5 to 15% by weight, preferably 1 to 10% by weight, of an element from subgroup 8 are generally used.
- ⁇ , ⁇ -unsaturated carbonyl compounds Compounds such as fumaric acid ester, maleic acid ester, mesityl oxide, benzalacetone, isophorone, verbenone, crotonic acid ester, etc. are used as ⁇ , ⁇ -unsaturated carbonyl compounds. It is particularly preferred to use dehydrating agents whose solubility behavior in the liquid phase is such that removal of excess dehydrating agent and its reaction products in the crystallization is complete, for example dibutyl maleate.
- the ⁇ , ⁇ -unsaturated carbonyl compounds are used in a ratio of 0.2 to 10 parts by weight based on 1 part by weight of the starting material.
- the ⁇ , ⁇ -unsaturated carbonyl compounds are preferably used in excess and therefore simultaneously serve as solvents. The use of a further solvent can therefore be dispensed with.
- the dehydrogenation by the process according to the invention is preferably carried out in the liquid phase.
- the reaction mixture is used as the liquid phase.
- the process according to the invention is generally carried out in the temperature range from 100 to 300.degree. When using maleic acid dibutyl ester it is preferred to work at 220-260 ° C.
- the process can be carried out under normal pressure and under positive or negative pressure. For example, the following pressure range is mentioned: 0.2 to 10 bar.
- the amount of catalyst can be 0.001 to 30% by weight, preferably 0.2 to 15% by weight, based on the starting material.
- the process according to the invention can be carried out, for example, as follows: Dibenzosuberon is reacted with 10% by weight Pd / C (10% by weight Pd) and 1.5 times (based on the weight) of dibutyl maleate. After the reaction, the mixture is filtered off, the dehydrogenating agent is distilled off and the product is purified by crystallization.
- the process according to the invention was surprising, since the disproportionation taking place as a competitive reaction is almost completely avoided by adding a hydrogen acceptor. This greatly improves the yield. moreover no raw material is converted into a by-product that cannot be used.
- the hydrogen acceptor is also uncritical in toxicity and handling, which makes the technical implementation possible.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19941211 | 1999-08-30 | ||
| DE19941211A DE19941211A1 (de) | 1999-08-30 | 1999-08-30 | Herstellung von Dibenzosuberenon-Derivaten durch katralytische Dehydrierung |
| PCT/EP2000/008167 WO2001016065A1 (de) | 1999-08-30 | 2000-08-22 | Herstellung von dibenzosuberenon-derivaten durch katalytische dehydrierung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1214283A1 true EP1214283A1 (de) | 2002-06-19 |
Family
ID=7920148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00960504A Withdrawn EP1214283A1 (de) | 1999-08-30 | 2000-08-22 | Herstellung von dibenzosuberenon-derivaten durch katalytische dehydrierung |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US6617473B1 (de) |
| EP (1) | EP1214283A1 (de) |
| JP (1) | JP2003508359A (de) |
| KR (1) | KR20020025238A (de) |
| CN (1) | CN1372536A (de) |
| AU (1) | AU766973B2 (de) |
| BR (1) | BR0013709A (de) |
| DE (1) | DE19941211A1 (de) |
| HK (1) | HK1049654A1 (de) |
| MX (1) | MXPA02002146A (de) |
| WO (1) | WO2001016065A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5574860B2 (ja) * | 2010-07-14 | 2014-08-20 | キヤノン株式会社 | ジベンゾスベロン骨格を有する有機発光素子用材料 |
| CN105017041B (zh) * | 2015-06-12 | 2017-09-29 | 北京科技大学 | 二苯并环庚烯酮衍生物及其制备和应用 |
| CN108191620A (zh) * | 2018-01-10 | 2018-06-22 | 河南中医药大学 | 一种利用固体酸催化剂制备阿米替林中间体的方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE298773C (de) | ||||
| US3448102A (en) | 1965-01-22 | 1969-06-03 | Squibb & Sons Inc | Dihydrodibenzazocines |
| US3551498A (en) | 1969-04-23 | 1970-12-29 | Merck & Co Inc | Dehydrogenation of 10,11-dihydro-5h-dibenzo(a,d)cycloheptene-5-one |
| US3836585A (en) | 1969-04-23 | 1974-09-17 | Merck & Co Inc | Dehalogenation of dihalo-5h-dibenzocycloheptenones using chromous chloride |
| AU2258683A (en) | 1983-01-03 | 1984-07-05 | American Home Products Corporation | Dibenzocycloheptenylidenes and derivatives theof |
| DD298773A5 (de) * | 1990-03-02 | 1992-03-12 | Akad Wissenschaften | Verfahren zur katalytischen dehydrierung von 1,2-diphenylethanen zu 1,2-diphenylethenen |
| ES2090839T3 (es) * | 1992-04-06 | 1996-10-16 | Quest Int | Preparacion de 8-hidroxicimeno por deshidrogenacion. |
| EP0953294B1 (de) | 1998-04-27 | 2005-09-21 | Symrise GmbH & Co. KG | Verwendung von 3,6-Dimethyl-2-(3H)-benzofuranon als Aromastoff; Nahrungs-, Genuss- und Mundpflegemittel enthaltend 3,6-Dimethyl-2-(3H)-benzofuranon |
-
1999
- 1999-08-30 DE DE19941211A patent/DE19941211A1/de not_active Withdrawn
-
2000
- 2000-08-22 CN CN00812326A patent/CN1372536A/zh active Pending
- 2000-08-22 AU AU72788/00A patent/AU766973B2/en not_active Ceased
- 2000-08-22 US US10/069,888 patent/US6617473B1/en not_active Expired - Fee Related
- 2000-08-22 BR BR0013709-0A patent/BR0013709A/pt not_active Application Discontinuation
- 2000-08-22 JP JP2001519635A patent/JP2003508359A/ja active Pending
- 2000-08-22 EP EP00960504A patent/EP1214283A1/de not_active Withdrawn
- 2000-08-22 KR KR1020027002547A patent/KR20020025238A/ko not_active Withdrawn
- 2000-08-22 WO PCT/EP2000/008167 patent/WO2001016065A1/de not_active Ceased
- 2000-08-22 HK HK03101786.3A patent/HK1049654A1/zh unknown
- 2000-08-22 MX MXPA02002146A patent/MXPA02002146A/es unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0116065A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US6617473B1 (en) | 2003-09-09 |
| BR0013709A (pt) | 2002-05-07 |
| HK1049654A1 (zh) | 2003-05-23 |
| DE19941211A1 (de) | 2001-03-08 |
| CN1372536A (zh) | 2002-10-02 |
| MXPA02002146A (es) | 2002-11-07 |
| AU766973B2 (en) | 2003-10-30 |
| AU7278800A (en) | 2001-03-26 |
| KR20020025238A (ko) | 2002-04-03 |
| WO2001016065A1 (de) | 2001-03-08 |
| JP2003508359A (ja) | 2003-03-04 |
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