Process for the preparation of chlorocarboxylic acid chlorides
Verfahren zur Herstellung von Chlorcarbonsäurechloriden der Formel R- ??-(CH2)n-COCl I, in der R H oder einen Alkylrest und n eine ganze Zahl von 2 bis 4 bedeuten, durch Umsetzung von Lactonen der Formel mit Phosgen bei höherer Temperatur und in Gegenwart von quartären Ammoniumsalzen. Chlorocarboxyl...
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| creator | DECKER, MARTIN,DR NEUMAYR, FRANZ |
| description | Verfahren zur Herstellung von Chlorcarbonsäurechloriden der Formel R- ??-(CH2)n-COCl I, in der R H oder einen Alkylrest und n eine ganze Zahl von 2 bis 4 bedeuten, durch Umsetzung von Lactonen der Formel mit Phosgen bei höherer Temperatur und in Gegenwart von quartären Ammoniumsalzen.
Chlorocarboxylic acid chlorides of the formula I where R is H or alkyl and n is an integer from 2 to 4, are prepared by reacting a lactone of the formula II with phosgene at elevated temperatures and in the presence of a quaternary ammonium salt. |
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Chlorocarboxylic acid chlorides of the formula I where R is H or alkyl and n is an integer from 2 to 4, are prepared by reacting a lactone of the formula II with phosgene at elevated temperatures and in the presence of a quaternary ammonium salt.</description><edition>4</edition><language>eng ; fre ; 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>1988</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=19880120&DB=EPODOC&CC=EP&NR=0253214A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19880120&DB=EPODOC&CC=EP&NR=0253214A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DECKER, MARTIN,DR</creatorcontrib><creatorcontrib>NEUMAYR, FRANZ</creatorcontrib><title>Process for the preparation of chlorocarboxylic acid chlorides</title><description>Verfahren zur Herstellung von Chlorcarbonsäurechloriden der Formel R- ??-(CH2)n-COCl I, in der R H oder einen Alkylrest und n eine ganze Zahl von 2 bis 4 bedeuten, durch Umsetzung von Lactonen der Formel mit Phosgen bei höherer Temperatur und in Gegenwart von quartären Ammoniumsalzen.
Chlorocarboxylic acid chlorides of the formula I where R is H or alkyl and n is an integer from 2 to 4, are prepared by reacting a lactone of the formula II with phosgene at elevated temperatures and in the presence of a quaternary ammonium salt.</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>1988</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLALKMpPTi0uVkjLL1IoyUhVKChKLUgsSizJzM9TyE9TSM7IyQeqSCxKyq-ozMlMVkhMzkyBiGampBbzMLCmJeYUp_JCaW4GBTfXEGcP3dSC_PjU4oLE5NS81JJ41wADI1NjI0MTR0NjIpQAACFeMHU</recordid><startdate>19880120</startdate><enddate>19880120</enddate><creator>DECKER, MARTIN,DR</creator><creator>NEUMAYR, FRANZ</creator><scope>EVB</scope></search><sort><creationdate>19880120</creationdate><title>Process for the preparation of chlorocarboxylic acid chlorides</title><author>DECKER, MARTIN,DR ; NEUMAYR, FRANZ</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP0253214A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>1988</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>DECKER, MARTIN,DR</creatorcontrib><creatorcontrib>NEUMAYR, FRANZ</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>DECKER, MARTIN,DR</au><au>NEUMAYR, FRANZ</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Process for the preparation of chlorocarboxylic acid chlorides</title><date>1988-01-20</date><risdate>1988</risdate><abstract>Verfahren zur Herstellung von Chlorcarbonsäurechloriden der Formel R- ??-(CH2)n-COCl I, in der R H oder einen Alkylrest und n eine ganze Zahl von 2 bis 4 bedeuten, durch Umsetzung von Lactonen der Formel mit Phosgen bei höherer Temperatur und in Gegenwart von quartären Ammoniumsalzen.
Chlorocarboxylic acid chlorides of the formula I where R is H or alkyl and n is an integer from 2 to 4, are prepared by reacting a lactone of the formula II with phosgene at elevated temperatures and in the presence of a quaternary ammonium salt.</abstract><edition>4</edition><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 | Process for the preparation of chlorocarboxylic acid chlorides |
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