Process for preparing pyrazoles
eÜen poskytuje · innou synt zu pyrazol , vhodnou k bezpe n mu zaveden zp sobu ve velk m m ° tku a zvl Üt pro synt zu proveditelnou v jedn n dob . eÜen se t²k zp sobu p° pravy pyrazol obsahuj c kroky, kter²mi jsou tvorba 4-halogenfenyl-butan-1,3-dionu (nebo jeho keto-enol tautomeru) a reakce uveden h...
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| creator | NEWAZ MURAD TALLEY JOHN J BERTENSHAW STEPHEN ZHI BENXIN |
| description | eÜen poskytuje · innou synt zu pyrazol , vhodnou k bezpe n mu zaveden zp sobu ve velk m m ° tku a zvl Üt pro synt zu proveditelnou v jedn n dob . eÜen se t²k zp sobu p° pravy pyrazol obsahuj c kroky, kter²mi jsou tvorba 4-halogenfenyl-butan-1,3-dionu (nebo jeho keto-enol tautomeru) a reakce uveden ho dionu s benzensulfonamidem za vzniku [3-halogenalkyl-1H-pyrazol-1-yl]benzensulfonamidu.\
The present invention provides an efficient synthesis of pyrazoles suitable for adoption in a safe, large-scale process and particularly for synthesis that can be carried out in a single vessel. The invention relates to a process for preparing pyrazoles comprising the steps of forming a l-aryl-4-halobutane-1,3-dione and reacting said dione with an aminosulfonylphenyl hydrazine, or salt thereof, to form the [3-haloalkyl-lH-pyrazol-l-yl] benzenesulfonamide. |
| format | Patent |
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The present invention provides an efficient synthesis of pyrazoles suitable for adoption in a safe, large-scale process and particularly for synthesis that can be carried out in a single vessel. The invention relates to a process for preparing pyrazoles comprising the steps of forming a l-aryl-4-halobutane-1,3-dione and reacting said dione with an aminosulfonylphenyl hydrazine, or salt thereof, to form the [3-haloalkyl-lH-pyrazol-l-yl] benzenesulfonamide.</description><edition>7</edition><language>cze ; eng</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; CHEMISTRY ; HETEROCYCLIC COMPOUNDS ; METALLURGY ; ORGANIC CHEMISTRY</subject><creationdate>2003</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=20030917&DB=EPODOC&CC=CZ&NR=292320B6$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20030917&DB=EPODOC&CC=CZ&NR=292320B6$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NEWAZ MURAD</creatorcontrib><creatorcontrib>TALLEY JOHN J</creatorcontrib><creatorcontrib>BERTENSHAW STEPHEN</creatorcontrib><creatorcontrib>ZHI BENXIN</creatorcontrib><title>Process for preparing pyrazoles</title><description>eÜen poskytuje · innou synt zu pyrazol , vhodnou k bezpe n mu zaveden zp sobu ve velk m m ° tku a zvl Üt pro synt zu proveditelnou v jedn n dob . eÜen se t²k zp sobu p° pravy pyrazol obsahuj c kroky, kter²mi jsou tvorba 4-halogenfenyl-butan-1,3-dionu (nebo jeho keto-enol tautomeru) a reakce uveden ho dionu s benzensulfonamidem za vzniku [3-halogenalkyl-1H-pyrazol-1-yl]benzensulfonamidu.\
The present invention provides an efficient synthesis of pyrazoles suitable for adoption in a safe, large-scale process and particularly for synthesis that can be carried out in a single vessel. The invention relates to a process for preparing pyrazoles comprising the steps of forming a l-aryl-4-halobutane-1,3-dione and reacting said dione with an aminosulfonylphenyl hydrazine, or salt thereof, to form the [3-haloalkyl-lH-pyrazol-l-yl] benzenesulfonamide.</description><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS</subject><subject>CHEMISTRY</subject><subject>HETEROCYCLIC COMPOUNDS</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2003</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJAPKMpPTi0uVkjLL1IoKEotSCzKzEtXKKgsSqzKz0kt5mFgTUvMKU7lhdLcDPJuriHOHrqpBfnxqcUFicmpeakl8c5RRpZGxkYGTmbGhFUAAL2KJIM</recordid><startdate>20030917</startdate><enddate>20030917</enddate><creator>NEWAZ MURAD</creator><creator>TALLEY JOHN J</creator><creator>BERTENSHAW STEPHEN</creator><creator>ZHI BENXIN</creator><scope>EVB</scope></search><sort><creationdate>20030917</creationdate><title>Process for preparing pyrazoles</title><author>NEWAZ MURAD ; TALLEY JOHN J ; BERTENSHAW STEPHEN ; ZHI BENXIN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CZ292320B63</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>cze ; eng</language><creationdate>2003</creationdate><topic>ACYCLIC OR CARBOCYCLIC COMPOUNDS</topic><topic>CHEMISTRY</topic><topic>HETEROCYCLIC COMPOUNDS</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><toplevel>online_resources</toplevel><creatorcontrib>NEWAZ MURAD</creatorcontrib><creatorcontrib>TALLEY JOHN J</creatorcontrib><creatorcontrib>BERTENSHAW STEPHEN</creatorcontrib><creatorcontrib>ZHI BENXIN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NEWAZ MURAD</au><au>TALLEY JOHN J</au><au>BERTENSHAW STEPHEN</au><au>ZHI BENXIN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Process for preparing pyrazoles</title><date>2003-09-17</date><risdate>2003</risdate><abstract>eÜen poskytuje · innou synt zu pyrazol , vhodnou k bezpe n mu zaveden zp sobu ve velk m m ° tku a zvl Üt pro synt zu proveditelnou v jedn n dob . eÜen se t²k zp sobu p° pravy pyrazol obsahuj c kroky, kter²mi jsou tvorba 4-halogenfenyl-butan-1,3-dionu (nebo jeho keto-enol tautomeru) a reakce uveden ho dionu s benzensulfonamidem za vzniku [3-halogenalkyl-1H-pyrazol-1-yl]benzensulfonamidu.\
The present invention provides an efficient synthesis of pyrazoles suitable for adoption in a safe, large-scale process and particularly for synthesis that can be carried out in a single vessel. The invention relates to a process for preparing pyrazoles comprising the steps of forming a l-aryl-4-halobutane-1,3-dione and reacting said dione with an aminosulfonylphenyl hydrazine, or salt thereof, to form the [3-haloalkyl-lH-pyrazol-l-yl] benzenesulfonamide.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| title | Process for preparing pyrazoles |
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