Process for the preparation of 4,4'-dihydroxydiphenyl ether

Herstellung von 4,4'-Dihydroxidiphenylether aus Diphenylether durch oxidative Jodierung von Diphenylether zu 4,4'-Dijoddiphenylether und/oder 4-Hydroxi-4'-Joddiphenylether und deren basischer Hydrolyse mit Rückgewinnung des Jods und dessen Rückführung in die Diphenyletherjodierung. A...

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Hauptverfasser:	RIEMANN, ACHIM, UDE, WERNER
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY METALLURGY ORGANIC CHEMISTRY
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creator	RIEMANN, ACHIM UDE, WERNER
description	Herstellung von 4,4'-Dihydroxidiphenylether aus Diphenylether durch oxidative Jodierung von Diphenylether zu 4,4'-Dijoddiphenylether und/oder 4-Hydroxi-4'-Joddiphenylether und deren basischer Hydrolyse mit Rückgewinnung des Jods und dessen Rückführung in die Diphenyletherjodierung. A method for making 4,4'-dihydroxydiphenyl ether from diphenyl ether by oxidatively iodinating diphenyl ether to 4,4'-diiododiphenyl ether and/or 4-hydroxy-4'-iododiphenyl ether, hydrolyzing this product with a base, recovering iodine from the solution containing iodide, and recycling the iodine to the iodination step.
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A method for making 4,4'-dihydroxydiphenyl ether from diphenyl ether by oxidatively iodinating diphenyl ether to 4,4'-diiododiphenyl ether and/or 4-hydroxy-4'-iododiphenyl ether, hydrolyzing this product with a base, recovering iodine from the solution containing iodide, and recycling the iodine to the iodination step.</description><edition>4</edition><language>eng ; fre ; ger</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; CHEMISTRY ; METALLURGY ; ORGANIC CHEMISTRY</subject><creationdate>1986</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=19860903&DB=EPODOC&CC=EP&NR=0193064A2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19860903&DB=EPODOC&CC=EP&NR=0193064A2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>RIEMANN, ACHIM</creatorcontrib><creatorcontrib>UDE, WERNER</creatorcontrib><title>Process for the preparation of 4,4'-dihydroxydiphenyl ether</title><description>Herstellung von 4,4'-Dihydroxidiphenylether aus Diphenylether durch oxidative Jodierung von Diphenylether zu 4,4'-Dijoddiphenylether und/oder 4-Hydroxi-4'-Joddiphenylether und deren basischer Hydrolyse mit Rückgewinnung des Jods und dessen Rückführung in die Diphenyletherjodierung. A method for making 4,4'-dihydroxydiphenyl ether from diphenyl ether by oxidatively iodinating diphenyl ether to 4,4'-diiododiphenyl ether and/or 4-hydroxy-4'-iododiphenyl ether, hydrolyzing this product with a base, recovering iodine from the solution containing iodide, and recycling the iodine to the iodination step.</description><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS</subject><subject>CHEMISTRY</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1986</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLAOKMpPTi0uVkjLL1IoyUhVKChKLUgsSizJzM9TyE9TMNExUddNycyoTCnKr6hMySzISM2rzFFIBSot4mFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8a4BBoaWxgZmJo5GxkQoAQAfQi6c</recordid><startdate>19860903</startdate><enddate>19860903</enddate><creator>RIEMANN, ACHIM</creator><creator>UDE, WERNER</creator><scope>EVB</scope></search><sort><creationdate>19860903</creationdate><title>Process for the preparation of 4,4'-dihydroxydiphenyl ether</title><author>RIEMANN, ACHIM ; UDE, WERNER</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP0193064A23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>1986</creationdate><topic>ACYCLIC OR CARBOCYCLIC COMPOUNDS</topic><topic>CHEMISTRY</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><toplevel>online_resources</toplevel><creatorcontrib>RIEMANN, ACHIM</creatorcontrib><creatorcontrib>UDE, WERNER</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>RIEMANN, ACHIM</au><au>UDE, WERNER</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Process for the preparation of 4,4'-dihydroxydiphenyl ether</title><date>1986-09-03</date><risdate>1986</risdate><abstract>Herstellung von 4,4'-Dihydroxidiphenylether aus Diphenylether durch oxidative Jodierung von Diphenylether zu 4,4'-Dijoddiphenylether und/oder 4-Hydroxi-4'-Joddiphenylether und deren basischer Hydrolyse mit Rückgewinnung des Jods und dessen Rückführung in die Diphenyletherjodierung. A method for making 4,4'-dihydroxydiphenyl ether from diphenyl ether by oxidatively iodinating diphenyl ether to 4,4'-diiododiphenyl ether and/or 4-hydroxy-4'-iododiphenyl ether, hydrolyzing this product with a base, recovering iodine from the solution containing iodide, and recycling the iodine to the iodination step.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record>
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language	eng ; fre ; ger
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subjects	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY METALLURGY ORGANIC CHEMISTRY
title	Process for the preparation of 4,4'-dihydroxydiphenyl ether
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