VERFAHREN ZUR HERSTELLUNG VON ALKOXYKETONEN
A process for producing alkoxy ketones of formula I wherein R1 represents an alkyl group having 1 to 8 carbon atoms, R2 represents hydrogen or an alkyl group having 1 to 4 carbon atoms, and n represents 1 or 2, by dehydrogenation of a corresponding alkoxyalkanol on a copper-containing catalyst which...
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| creator | GREMMELMAIER,CLAUDE,DR |
| description | A process for producing alkoxy ketones of formula I wherein R1 represents an alkyl group having 1 to 8 carbon atoms, R2 represents hydrogen or an alkyl group having 1 to 4 carbon atoms, and n represents 1 or 2, by dehydrogenation of a corresponding alkoxyalkanol on a copper-containing catalyst which has been activated by treatment with hydrogen at 120 DEG to 450 DEG C., in which process the activated catalyst is firstly brought into contact at 230 DEG to 350 DEG C. with the vapor of the alkoxyalkanol to be dehydrogenated; hydrogen is subsequently passed over the catalyst at 250 DEG to 450 DEG C.; and then the dehydrogenation is performed at 150 DEG to 450 DEG C. on the catalyst pretreated in this manner, is disclosed. |
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hydrogen is subsequently passed over the catalyst at 250 DEG to 450 DEG C.; and then the dehydrogenation is performed at 150 DEG to 450 DEG C. on the catalyst pretreated in this manner, is disclosed.</description><language>ger</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; APPARATUS THEREFOR ; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ; CHEMISTRY ; GENERAL METHODS OF ORGANIC CHEMISTRY ; METALLURGY ; ORGANIC CHEMISTRY ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; THEIR RELEVANT APPARATUS ; TRANSPORTING</subject><creationdate>1978</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=19780720&DB=EPODOC&CC=DE&NR=2801496A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19780720&DB=EPODOC&CC=DE&NR=2801496A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GREMMELMAIER,CLAUDE,DR</creatorcontrib><title>VERFAHREN ZUR HERSTELLUNG VON ALKOXYKETONEN</title><description>A process for producing alkoxy ketones of formula I wherein R1 represents an alkyl group having 1 to 8 carbon atoms, R2 represents hydrogen or an alkyl group having 1 to 4 carbon atoms, and n represents 1 or 2, by dehydrogenation of a corresponding alkoxyalkanol on a copper-containing catalyst which has been activated by treatment with hydrogen at 120 DEG to 450 DEG C., in which process the activated catalyst is firstly brought into contact at 230 DEG to 350 DEG C. with the vapor of the alkoxyalkanol to be dehydrogenated; hydrogen is subsequently passed over the catalyst at 250 DEG to 450 DEG C.; and then the dehydrogenation is performed at 150 DEG to 450 DEG C. on the catalyst pretreated in this manner, is disclosed.</description><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS</subject><subject>APPARATUS THEREFOR</subject><subject>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY</subject><subject>CHEMISTRY</subject><subject>GENERAL METHODS OF ORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>THEIR RELEVANT APPARATUS</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1978</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNAOcw1yc_QIcvVTiAoNUvBwDQoOcfXxCfVzVwjz91Nw9PH2j4j0dg3x93P142FgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8S6uRhYGhiaWZo6GxkQoAQBdOyTs</recordid><startdate>19780720</startdate><enddate>19780720</enddate><creator>GREMMELMAIER,CLAUDE,DR</creator><scope>EVB</scope></search><sort><creationdate>19780720</creationdate><title>VERFAHREN ZUR HERSTELLUNG VON ALKOXYKETONEN</title><author>GREMMELMAIER,CLAUDE,DR</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_DE2801496A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>ger</language><creationdate>1978</creationdate><topic>ACYCLIC OR CARBOCYCLIC COMPOUNDS</topic><topic>APPARATUS THEREFOR</topic><topic>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY</topic><topic>CHEMISTRY</topic><topic>GENERAL METHODS OF ORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>THEIR RELEVANT APPARATUS</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>GREMMELMAIER,CLAUDE,DR</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GREMMELMAIER,CLAUDE,DR</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>VERFAHREN ZUR HERSTELLUNG VON ALKOXYKETONEN</title><date>1978-07-20</date><risdate>1978</risdate><abstract>A process for producing alkoxy ketones of formula I wherein R1 represents an alkyl group having 1 to 8 carbon atoms, R2 represents hydrogen or an alkyl group having 1 to 4 carbon atoms, and n represents 1 or 2, by dehydrogenation of a corresponding alkoxyalkanol on a copper-containing catalyst which has been activated by treatment with hydrogen at 120 DEG to 450 DEG C., in which process the activated catalyst is firstly brought into contact at 230 DEG to 350 DEG C. with the vapor of the alkoxyalkanol to be dehydrogenated; hydrogen is subsequently passed over the catalyst at 250 DEG to 450 DEG C.; and then the dehydrogenation is performed at 150 DEG to 450 DEG C. on the catalyst pretreated in this manner, is disclosed.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING |
| title | VERFAHREN ZUR HERSTELLUNG VON ALKOXYKETONEN |
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