Verfahren zur Herstellung aromatischer Aldehyde
The invention relates to a method for producing aromatic aldehydes from specially structured phenone ketals. First, the phenone ketal is added to a vinyl ether in the presence of Lewis acid catalysts. The acetal arising therefrom is subjected to acid hydrolysis to form a corresponding alpha , beta -...
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| creator | NEMITZ, RALF, 41363 JUECHEN, DE MARKERT, THOMAS., 40789 MONHEIM, DE |
| description | The invention relates to a method for producing aromatic aldehydes from specially structured phenone ketals. First, the phenone ketal is added to a vinyl ether in the presence of Lewis acid catalysts. The acetal arising therefrom is subjected to acid hydrolysis to form a corresponding alpha , beta -unsaturated aldehyde. Preferably, the C=C double bond of said aldehyde is selectively hydrogenated in the normal manner. |
| format | Patent |
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First, the phenone ketal is added to a vinyl ether in the presence of Lewis acid catalysts. The acetal arising therefrom is subjected to acid hydrolysis to form a corresponding alpha , beta -unsaturated aldehyde. Preferably, the C=C double bond of said aldehyde is selectively hydrogenated in the normal manner.</description><edition>6</edition><language>ger</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES ; APPARATUS THEREFOR ; CANDLES ; CHEMISTRY ; DETERGENTS ; ESSENTIAL OILS ; FATTY ACIDS THEREFROM ; GENERAL METHODS OF ORGANIC CHEMISTRY ; HUMAN NECESSITIES ; HYGIENE ; MEDICAL OR VETERINARY SCIENCE ; METALLURGY ; ORGANIC CHEMISTRY ; PERFUMES ; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES ; PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS ; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS</subject><creationdate>1998</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19981008&DB=EPODOC&CC=DE&NR=19714042A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19981008&DB=EPODOC&CC=DE&NR=19714042A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NEMITZ, RALF, 41363 JUECHEN, DE</creatorcontrib><creatorcontrib>MARKERT, THOMAS., 40789 MONHEIM, DE</creatorcontrib><title>Verfahren zur Herstellung aromatischer Aldehyde</title><description>The invention relates to a method for producing aromatic aldehydes from specially structured phenone ketals. First, the phenone ketal is added to a vinyl ether in the presence of Lewis acid catalysts. The acetal arising therefrom is subjected to acid hydrolysis to form a corresponding alpha , beta -unsaturated aldehyde. 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First, the phenone ketal is added to a vinyl ether in the presence of Lewis acid catalysts. The acetal arising therefrom is subjected to acid hydrolysis to form a corresponding alpha , beta -unsaturated aldehyde. Preferably, the C=C double bond of said aldehyde is selectively hydrogenated in the normal manner.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES APPARATUS THEREFOR CANDLES CHEMISTRY DETERGENTS ESSENTIAL OILS FATTY ACIDS THEREFROM GENERAL METHODS OF ORGANIC CHEMISTRY HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PERFUMES PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS |
| title | Verfahren zur Herstellung aromatischer Aldehyde |
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