Herbicide isoxaflutole synthesis method

Herbicide isoxaflutole synthesis method

The invention discloses a herbicide isoxaflutole synthesis method. According to the synthesis method, 5-cyclopropyl-4-[2-methylthio-4-(trifluoromethyl) benzoyl] isoxazole (I) is used as raw materials and mixed with haloalkane solvents including oxidation catalysts composed of sodium tungstate, ammon...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: WANG ZHENGXU, WANG FENGYUN, HOU YUANCHANG, WU YAOJUN, FENG MEILI
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator WANG ZHENGXU
WANG FENGYUN
HOU YUANCHANG
WU YAOJUN
FENG MEILI
description The invention discloses a herbicide isoxaflutole synthesis method. According to the synthesis method, 5-cyclopropyl-4-[2-methylthio-4-(trifluoromethyl) benzoyl] isoxazole (I) is used as raw materials and mixed with haloalkane solvents including oxidation catalysts composed of sodium tungstate, ammonium tungstate, sodium molybdate or ammonium molybdate, phase transfer catalysts composed of trioctyl methyl ammonium chloride, methyltributylammonium bromide or trioctyl methyl ammonium hydrogen sulfate, and inorganic acid, after mixing, hydrogen peroxide with the concentration being 30% is added dropwise, concentration is performed after the mixture stands and is layered, and finally, isoxaflutole (II) can be obtained. According to the method, the reaction condition is mild, operation is easy, three-water is little, a reaction can be controlled easily, the yield and the content of products are high, and the method is suitable for environment-friendly industrial production.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CN104774186A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CN104774186A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CN104774186A3</originalsourceid><addsrcrecordid>eNrjZFD3SC1KykzOTElVyCzOr0hMyyktyc9JVSiuzCvJSC3OLFbITS3JyE_hYWBNS8wpTuWF0twMim6uIc4euqkF-fGpxQWJyal5qSXxzn6GBibm5iaGFmaOxsSoAQDaUCiD</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Herbicide isoxaflutole synthesis method</title><source>esp@cenet</source><creator>WANG ZHENGXU ; WANG FENGYUN ; HOU YUANCHANG ; WU YAOJUN ; FENG MEILI</creator><creatorcontrib>WANG ZHENGXU ; WANG FENGYUN ; HOU YUANCHANG ; WU YAOJUN ; FENG MEILI</creatorcontrib><description>The invention discloses a herbicide isoxaflutole synthesis method. According to the synthesis method, 5-cyclopropyl-4-[2-methylthio-4-(trifluoromethyl) benzoyl] isoxazole (I) is used as raw materials and mixed with haloalkane solvents including oxidation catalysts composed of sodium tungstate, ammonium tungstate, sodium molybdate or ammonium molybdate, phase transfer catalysts composed of trioctyl methyl ammonium chloride, methyltributylammonium bromide or trioctyl methyl ammonium hydrogen sulfate, and inorganic acid, after mixing, hydrogen peroxide with the concentration being 30% is added dropwise, concentration is performed after the mixture stands and is layered, and finally, isoxaflutole (II) can be obtained. According to the method, the reaction condition is mild, operation is easy, three-water is little, a reaction can be controlled easily, the yield and the content of products are high, and the method is suitable for environment-friendly industrial production.</description><language>eng</language><subject>CHEMISTRY ; HETEROCYCLIC COMPOUNDS ; METALLURGY ; ORGANIC CHEMISTRY</subject><creationdate>2015</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&amp;date=20150715&amp;DB=EPODOC&amp;CC=CN&amp;NR=104774186A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20150715&amp;DB=EPODOC&amp;CC=CN&amp;NR=104774186A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WANG ZHENGXU</creatorcontrib><creatorcontrib>WANG FENGYUN</creatorcontrib><creatorcontrib>HOU YUANCHANG</creatorcontrib><creatorcontrib>WU YAOJUN</creatorcontrib><creatorcontrib>FENG MEILI</creatorcontrib><title>Herbicide isoxaflutole synthesis method</title><description>The invention discloses a herbicide isoxaflutole synthesis method. According to the synthesis method, 5-cyclopropyl-4-[2-methylthio-4-(trifluoromethyl) benzoyl] isoxazole (I) is used as raw materials and mixed with haloalkane solvents including oxidation catalysts composed of sodium tungstate, ammonium tungstate, sodium molybdate or ammonium molybdate, phase transfer catalysts composed of trioctyl methyl ammonium chloride, methyltributylammonium bromide or trioctyl methyl ammonium hydrogen sulfate, and inorganic acid, after mixing, hydrogen peroxide with the concentration being 30% is added dropwise, concentration is performed after the mixture stands and is layered, and finally, isoxaflutole (II) can be obtained. According to the method, the reaction condition is mild, operation is easy, three-water is little, a reaction can be controlled easily, the yield and the content of products are high, and the method is suitable for environment-friendly industrial production.</description><subject>CHEMISTRY</subject><subject>HETEROCYCLIC COMPOUNDS</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2015</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFD3SC1KykzOTElVyCzOr0hMyyktyc9JVSiuzCvJSC3OLFbITS3JyE_hYWBNS8wpTuWF0twMim6uIc4euqkF-fGpxQWJyal5qSXxzn6GBibm5iaGFmaOxsSoAQDaUCiD</recordid><startdate>20150715</startdate><enddate>20150715</enddate><creator>WANG ZHENGXU</creator><creator>WANG FENGYUN</creator><creator>HOU YUANCHANG</creator><creator>WU YAOJUN</creator><creator>FENG MEILI</creator><scope>EVB</scope></search><sort><creationdate>20150715</creationdate><title>Herbicide isoxaflutole synthesis method</title><author>WANG ZHENGXU ; WANG FENGYUN ; HOU YUANCHANG ; WU YAOJUN ; FENG MEILI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN104774186A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2015</creationdate><topic>CHEMISTRY</topic><topic>HETEROCYCLIC COMPOUNDS</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><toplevel>online_resources</toplevel><creatorcontrib>WANG ZHENGXU</creatorcontrib><creatorcontrib>WANG FENGYUN</creatorcontrib><creatorcontrib>HOU YUANCHANG</creatorcontrib><creatorcontrib>WU YAOJUN</creatorcontrib><creatorcontrib>FENG MEILI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WANG ZHENGXU</au><au>WANG FENGYUN</au><au>HOU YUANCHANG</au><au>WU YAOJUN</au><au>FENG MEILI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Herbicide isoxaflutole synthesis method</title><date>2015-07-15</date><risdate>2015</risdate><abstract>The invention discloses a herbicide isoxaflutole synthesis method. According to the synthesis method, 5-cyclopropyl-4-[2-methylthio-4-(trifluoromethyl) benzoyl] isoxazole (I) is used as raw materials and mixed with haloalkane solvents including oxidation catalysts composed of sodium tungstate, ammonium tungstate, sodium molybdate or ammonium molybdate, phase transfer catalysts composed of trioctyl methyl ammonium chloride, methyltributylammonium bromide or trioctyl methyl ammonium hydrogen sulfate, and inorganic acid, after mixing, hydrogen peroxide with the concentration being 30% is added dropwise, concentration is performed after the mixture stands and is layered, and finally, isoxaflutole (II) can be obtained. According to the method, the reaction condition is mild, operation is easy, three-water is little, a reaction can be controlled easily, the yield and the content of products are high, and the method is suitable for environment-friendly industrial production.</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_epo_espacenet_CN104774186A
source esp@cenet
subjects CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
title Herbicide isoxaflutole synthesis method
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-03T20%3A10%3A03IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=WANG%20ZHENGXU&rft.date=2015-07-15&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ECN104774186A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true