CH143251A - Process for the preparation of a compound with a hydrogenated ring system. - Google Patents
Process for the preparation of a compound with a hydrogenated ring system.Info
- Publication number
- CH143251A CH143251A CH143251DA CH143251A CH 143251 A CH143251 A CH 143251A CH 143251D A CH143251D A CH 143251DA CH 143251 A CH143251 A CH 143251A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- compound
- ring system
- hydrogenated ring
- methylhexatriene
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 4
- 150000001875 compounds Chemical class 0.000 title description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- 230000009965 odorless effect Effects 0.000 claims description 2
- 150000008064 anhydrides Chemical class 0.000 claims 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- USKZHEQYENVSMH-UHFFFAOYSA-N hepta-1,3,5-triene Chemical compound CC=CC=CC=C USKZHEQYENVSMH-UHFFFAOYSA-N 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- JGEMYUOFGVHXKV-UPHRSURJSA-N malealdehyde Chemical compound O=C\C=C/C=O JGEMYUOFGVHXKV-UPHRSURJSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229940127557 pharmaceutical product Drugs 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C47/00—Compounds having —CHO groups
- C07C47/38—Unsaturated compounds having —CHO groups bound to carbon atoms of rings other than six—membered aromatic rings
- C07C47/42—Unsaturated compounds having —CHO groups bound to carbon atoms of rings other than six—membered aromatic rings with a six-membered ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung einer Verbindung mit hydriertem Ringsystem. Gegenstand dieses Zusatzpatentes ist ein Verfahren zur Darstellung eines neuen hydro- aromatischen o-Dicarborisäur-e..nhydrids, wel ches dadurch gekennzeichnet ist, dass man lIaleinsäureanhydrid finit 1-Methylhexatrien- (1. 3 . 5) kondensiert. Die neue Verbindung ,oll zur Herstellung von Farbstoffen, phar- rnazeutischen Produkten und Riechstoffen ver- \vendet werden.
<I>Beispiel:</I> Man suspendiert 98 (-xewichtsteile Malein- säur#earrhydrid in 200 cm' Benzol, erwärmt das Gemisch auf etwa 60 C und gibt 94 Gewichtsteile 1-Methyl-hexatrien-(1.3. 5) nach und nach hinzu. Schon nach der Hinzugabe der ersten Portionen des Kohlenwasserstoffes tritt eine lebhafte Reaktion ein, die sich durch starkes Sieden des Benzols bemerkbar macht.
Nachdem die ganze Menge des Koh-" lenwasserstoffes eingetragen ist, erwärmt man noch etwa i/- Stunde auf dem Wasserbade und destilliert bei gewöhnlichem Druck das Benzol und unveränderten Kohlenwasserstoff ab. Darauf wird im Vakuum destilliert. Nach sehr geringen Spuren von Maleinsäure- anhydrid erhält man eine bei 16 mm Druck zwischen 183 und 189 C siedende Fraktion. Bei Wiederholung der Destillation siedet praktisch die ganze Menge bei Kp. i,, 182,5 bis 183 C.
Das erhaltene Produkt stellt ein wasserhelles, dickflüssiges, geruchloses <B>01</B> dar.
Process for the preparation of a compound with a hydrogenated ring system. The subject of this additional patent is a process for the preparation of a new hydroaromatic o-dicarboric acid e..nhydride, which is characterized in that 1-methylhexatriene finite 1-methylhexatriene (1. 3. 5) is condensed. The new compound is to be used in the manufacture of dyes, pharmaceutical products and fragrances.
<I> Example: </I> 98 parts by weight of maleic acid hydride are suspended in 200 cm of benzene, the mixture is heated to about 60 ° C. and 94 parts by weight of 1-methylhexatriene (1 March 5) are added As soon as the first portions of the hydrocarbon have been added, a lively reaction takes place, which is noticeable by the strong boiling of the benzene.
After all of the hydrocarbon has been introduced, the mixture is heated for about one-half hour in the water bath and the benzene and unchanged hydrocarbon are distilled off at normal pressure. This is followed by vacuum distillation. Very small traces of maleic anhydride are obtained a fraction boiling at 16 mm pressure between 183 and 189 C. When the distillation is repeated, practically the entire amount boils at a boiling point of 182.5 to 183 C.
The product obtained is a water-white, viscous, odorless <B> 01 </B>.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH143251T | 1929-01-07 | ||
| CH141523T | 1930-08-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH143251A true CH143251A (en) | 1930-10-31 |
Family
ID=25713717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH143251D CH143251A (en) | 1929-01-07 | 1929-01-07 | Process for the preparation of a compound with a hydrogenated ring system. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH143251A (en) |
-
1929
- 1929-01-07 CH CH143251D patent/CH143251A/en unknown
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