3-(hydroxymethyl)chromen-4-ones and process for preparing
3-(Hydroxymethyl)chromen-4-ones of formula (I) are described and a process for preparing said compounds. The process consists in reacting the compounds of general formula (II) wherein R is hydrogen, halogen, alkyl having 1 to 4 carbon atoms or alkoxy having 1 to 4 carbon atoms optionally substituted...
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creator | JOSE A ORTIZ JORDI BOLOS RAFAEL FOGUET AURELIO SACRISTAN JOSEP M CASTELLO |
description | 3-(Hydroxymethyl)chromen-4-ones of formula (I) are described and a process for preparing said compounds. The process consists in reacting the compounds of general formula (II) wherein R is hydrogen, halogen, alkyl having 1 to 4 carbon atoms or alkoxy having 1 to 4 carbon atoms optionally substituted by phenyl or halogen, with formaldehyde and a basic catalyst followed by dehydration in an acid medium to form 3-(hydroxymethyl)chromen-4-ones of general formula (I), wherein R is as defined for (II); |
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The process consists in reacting the compounds of general formula (II) wherein R is hydrogen, halogen, alkyl having 1 to 4 carbon atoms or alkoxy having 1 to 4 carbon atoms optionally substituted by phenyl or halogen, with formaldehyde and a basic catalyst followed by dehydration in an acid medium to form 3-(hydroxymethyl)chromen-4-ones of general formula (I), wherein R is as defined for (II);</description><edition>7</edition><language>eng</language><subject>APPARATUS THEREFOR ; CHEMISTRY ; GENERAL METHODS OF ORGANIC CHEMISTRY ; HETEROCYCLIC COMPOUNDS ; METALLURGY ; ORGANIC CHEMISTRY</subject><creationdate>2002</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=20021031&DB=EPODOC&CC=AU&NR=754043B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20021031&DB=EPODOC&CC=AU&NR=754043B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>JOSE A ORTIZ</creatorcontrib><creatorcontrib>JORDI BOLOS</creatorcontrib><creatorcontrib>RAFAEL FOGUET</creatorcontrib><creatorcontrib>AURELIO SACRISTAN</creatorcontrib><creatorcontrib>JOSEP M CASTELLO</creatorcontrib><title>3-(hydroxymethyl)chromen-4-ones and process for preparing</title><description>3-(Hydroxymethyl)chromen-4-ones of formula (I) are described and a process for preparing said compounds. The process consists in reacting the compounds of general formula (II) wherein R is hydrogen, halogen, alkyl having 1 to 4 carbon atoms or alkoxy having 1 to 4 carbon atoms optionally substituted by phenyl or halogen, with formaldehyde and a basic catalyst followed by dehydration in an acid medium to form 3-(hydroxymethyl)chromen-4-ones of general formula (I), wherein R is as defined for (II);</description><subject>APPARATUS THEREFOR</subject><subject>CHEMISTRY</subject><subject>GENERAL METHODS OF ORGANIC CHEMISTRY</subject><subject>HETEROCYCLIC COMPOUNDS</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2002</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLA01tXIqEwpyq-ozE0tyajM0UzOKMrPTc3TNdHNz0stVkjMS1EoKMpPTi0uVkjLLwKyUwsSizLz0nkYWNMSc4pTeaE0N4OCm2uIs4duakF-fGpxQWJyal5qSbxjqLmpiYGJsZOTkTERSgDGiy4r</recordid><startdate>20021031</startdate><enddate>20021031</enddate><creator>JOSE A ORTIZ</creator><creator>JORDI BOLOS</creator><creator>RAFAEL FOGUET</creator><creator>AURELIO SACRISTAN</creator><creator>JOSEP M CASTELLO</creator><scope>EVB</scope></search><sort><creationdate>20021031</creationdate><title>3-(hydroxymethyl)chromen-4-ones and process for preparing</title><author>JOSE A ORTIZ ; JORDI BOLOS ; RAFAEL FOGUET ; AURELIO SACRISTAN ; JOSEP M CASTELLO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_AU754043BB23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2002</creationdate><topic>APPARATUS THEREFOR</topic><topic>CHEMISTRY</topic><topic>GENERAL METHODS OF ORGANIC CHEMISTRY</topic><topic>HETEROCYCLIC COMPOUNDS</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><toplevel>online_resources</toplevel><creatorcontrib>JOSE A ORTIZ</creatorcontrib><creatorcontrib>JORDI BOLOS</creatorcontrib><creatorcontrib>RAFAEL FOGUET</creatorcontrib><creatorcontrib>AURELIO SACRISTAN</creatorcontrib><creatorcontrib>JOSEP M CASTELLO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>JOSE A ORTIZ</au><au>JORDI BOLOS</au><au>RAFAEL FOGUET</au><au>AURELIO SACRISTAN</au><au>JOSEP M CASTELLO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>3-(hydroxymethyl)chromen-4-ones and process for preparing</title><date>2002-10-31</date><risdate>2002</risdate><abstract>3-(Hydroxymethyl)chromen-4-ones of formula (I) are described and a process for preparing said compounds. The process consists in reacting the compounds of general formula (II) wherein R is hydrogen, halogen, alkyl having 1 to 4 carbon atoms or alkoxy having 1 to 4 carbon atoms optionally substituted by phenyl or halogen, with formaldehyde and a basic catalyst followed by dehydration in an acid medium to form 3-(hydroxymethyl)chromen-4-ones of general formula (I), wherein R is as defined for (II);</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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subjects | APPARATUS THEREFOR CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY |
title | 3-(hydroxymethyl)chromen-4-ones and process for preparing |
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