Unexpected formation of a xanthone in the synthesis of a bisbenzoxazole
Recently we reported the synthesis in polyphosphoric acid of a graft copolymer consisting of a rigid‐rod poly[benzo(1,2‐d;4,5‐d′)bisthiazole‐2,6‐diyl]‐1,4‐phenylene backbone and flexible poly(oxy‐1,3‐phenylenecarbonyl‐1,4‐phenylene) side‐chains [1]. However, upon extension of this synthetic approach...
Gespeichert in:
| Veröffentlicht in: | Journal of heterocyclic chemistry 1997-05, Vol.34 (3), p.817-821 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 821 |
|---|---|
| container_issue | 3 |
| container_start_page | 817 |
| container_title | Journal of heterocyclic chemistry |
| container_volume | 34 |
| creator | Dotrong, My Lovejoy, Steven M. Wolfe, James F. Evers, Robert C. |
| description | Recently we reported the synthesis in polyphosphoric acid of a graft copolymer consisting of a rigid‐rod poly[benzo(1,2‐d;4,5‐d′)bisthiazole‐2,6‐diyl]‐1,4‐phenylene backbone and flexible poly(oxy‐1,3‐phenylenecarbonyl‐1,4‐phenylene) side‐chains [1]. However, upon extension of this synthetic approach to the analogous graft copolymer with a poly[benzo(1,2‐d:5,4‐d′)bisoxazole‐2,6‐diyl]‐1,4‐phenylene backbone, we encountered some unexpected results due to methyl group migration. In order to better understand these results, we carried out the synthesis of selected benzothiazole and benzoxazole structures under appropriate reaction conditions. The results are reported in this article. |
| doi_str_mv | 10.1002/jhet.5570340318 |
| format | Article |
| fullrecord | <record><control><sourceid>istex_cross</sourceid><recordid>TN_cdi_crossref_primary_10_1002_jhet_5570340318</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>ark_67375_WNG_PDRDJV2X_2</sourcerecordid><originalsourceid>FETCH-LOGICAL-c3298-a96886734e11389e1b106c14ae9ff9ee0c22ba43e3f10bb9604b1f58e98c57413</originalsourceid><addsrcrecordid>eNqFkE1PAjEQhhujiYieve4fWOi0-9V4MoAgIWoMKLemXaehCFuy3YSFX--SNRpPniZv5n0mmYeQW6A9oJT11yusenGcUh5RDtkZ6YCIeBiD4Oek0zRYCDFbXpIr79dNBJ6mHTJeFFjvMK_wIzCu3KrKuiJwJlBBrYpq5QoMbBFUKwz8ocnorW_X2nqNxdHV6ug2eE0ujNp4vPmeXbJ4GM0Hk3D2PH4c3M_CnDORhUokWZakPEIAngkEDTTJIVIojBGINGdMq4gjN0C1FgmNNJg4Q5HlcRoB75J-ezcvnfclGrkr7VaVBwlUnjzIkwf566Eh7lpibzd4-K8up5PR_A8dtrT1FdY_tCo_ZfNGGsv3p7F8Gb4Op29sKRn_Arypchc</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Unexpected formation of a xanthone in the synthesis of a bisbenzoxazole</title><source>Access via Wiley Online Library</source><creator>Dotrong, My ; Lovejoy, Steven M. ; Wolfe, James F. ; Evers, Robert C.</creator><creatorcontrib>Dotrong, My ; Lovejoy, Steven M. ; Wolfe, James F. ; Evers, Robert C.</creatorcontrib><description>Recently we reported the synthesis in polyphosphoric acid of a graft copolymer consisting of a rigid‐rod poly[benzo(1,2‐d;4,5‐d′)bisthiazole‐2,6‐diyl]‐1,4‐phenylene backbone and flexible poly(oxy‐1,3‐phenylenecarbonyl‐1,4‐phenylene) side‐chains [1]. However, upon extension of this synthetic approach to the analogous graft copolymer with a poly[benzo(1,2‐d:5,4‐d′)bisoxazole‐2,6‐diyl]‐1,4‐phenylene backbone, we encountered some unexpected results due to methyl group migration. In order to better understand these results, we carried out the synthesis of selected benzothiazole and benzoxazole structures under appropriate reaction conditions. The results are reported in this article.</description><identifier>ISSN: 0022-152X</identifier><identifier>EISSN: 1943-5193</identifier><identifier>DOI: 10.1002/jhet.5570340318</identifier><language>eng</language><publisher>Hoboken: Wiley-Blackwell</publisher><ispartof>Journal of heterocyclic chemistry, 1997-05, Vol.34 (3), p.817-821</ispartof><rights>Copyright © 1997 Journal of Heterocyclic Chemistry</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3298-a96886734e11389e1b106c14ae9ff9ee0c22ba43e3f10bb9604b1f58e98c57413</citedby><cites>FETCH-LOGICAL-c3298-a96886734e11389e1b106c14ae9ff9ee0c22ba43e3f10bb9604b1f58e98c57413</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fjhet.5570340318$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fjhet.5570340318$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Dotrong, My</creatorcontrib><creatorcontrib>Lovejoy, Steven M.</creatorcontrib><creatorcontrib>Wolfe, James F.</creatorcontrib><creatorcontrib>Evers, Robert C.</creatorcontrib><title>Unexpected formation of a xanthone in the synthesis of a bisbenzoxazole</title><title>Journal of heterocyclic chemistry</title><description>Recently we reported the synthesis in polyphosphoric acid of a graft copolymer consisting of a rigid‐rod poly[benzo(1,2‐d;4,5‐d′)bisthiazole‐2,6‐diyl]‐1,4‐phenylene backbone and flexible poly(oxy‐1,3‐phenylenecarbonyl‐1,4‐phenylene) side‐chains [1]. However, upon extension of this synthetic approach to the analogous graft copolymer with a poly[benzo(1,2‐d:5,4‐d′)bisoxazole‐2,6‐diyl]‐1,4‐phenylene backbone, we encountered some unexpected results due to methyl group migration. In order to better understand these results, we carried out the synthesis of selected benzothiazole and benzoxazole structures under appropriate reaction conditions. The results are reported in this article.</description><issn>0022-152X</issn><issn>1943-5193</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><recordid>eNqFkE1PAjEQhhujiYieve4fWOi0-9V4MoAgIWoMKLemXaehCFuy3YSFX--SNRpPniZv5n0mmYeQW6A9oJT11yusenGcUh5RDtkZ6YCIeBiD4Oek0zRYCDFbXpIr79dNBJ6mHTJeFFjvMK_wIzCu3KrKuiJwJlBBrYpq5QoMbBFUKwz8ocnorW_X2nqNxdHV6ug2eE0ujNp4vPmeXbJ4GM0Hk3D2PH4c3M_CnDORhUokWZakPEIAngkEDTTJIVIojBGINGdMq4gjN0C1FgmNNJg4Q5HlcRoB75J-ezcvnfclGrkr7VaVBwlUnjzIkwf566Eh7lpibzd4-K8up5PR_A8dtrT1FdY_tCo_ZfNGGsv3p7F8Gb4Op29sKRn_Arypchc</recordid><startdate>199705</startdate><enddate>199705</enddate><creator>Dotrong, My</creator><creator>Lovejoy, Steven M.</creator><creator>Wolfe, James F.</creator><creator>Evers, Robert C.</creator><general>Wiley-Blackwell</general><general>Wiley‐Blackwell</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>199705</creationdate><title>Unexpected formation of a xanthone in the synthesis of a bisbenzoxazole</title><author>Dotrong, My ; Lovejoy, Steven M. ; Wolfe, James F. ; Evers, Robert C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3298-a96886734e11389e1b106c14ae9ff9ee0c22ba43e3f10bb9604b1f58e98c57413</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dotrong, My</creatorcontrib><creatorcontrib>Lovejoy, Steven M.</creatorcontrib><creatorcontrib>Wolfe, James F.</creatorcontrib><creatorcontrib>Evers, Robert C.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><jtitle>Journal of heterocyclic chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dotrong, My</au><au>Lovejoy, Steven M.</au><au>Wolfe, James F.</au><au>Evers, Robert C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Unexpected formation of a xanthone in the synthesis of a bisbenzoxazole</atitle><jtitle>Journal of heterocyclic chemistry</jtitle><date>1997-05</date><risdate>1997</risdate><volume>34</volume><issue>3</issue><spage>817</spage><epage>821</epage><pages>817-821</pages><issn>0022-152X</issn><eissn>1943-5193</eissn><abstract>Recently we reported the synthesis in polyphosphoric acid of a graft copolymer consisting of a rigid‐rod poly[benzo(1,2‐d;4,5‐d′)bisthiazole‐2,6‐diyl]‐1,4‐phenylene backbone and flexible poly(oxy‐1,3‐phenylenecarbonyl‐1,4‐phenylene) side‐chains [1]. However, upon extension of this synthetic approach to the analogous graft copolymer with a poly[benzo(1,2‐d:5,4‐d′)bisoxazole‐2,6‐diyl]‐1,4‐phenylene backbone, we encountered some unexpected results due to methyl group migration. In order to better understand these results, we carried out the synthesis of selected benzothiazole and benzoxazole structures under appropriate reaction conditions. The results are reported in this article.</abstract><cop>Hoboken</cop><pub>Wiley-Blackwell</pub><doi>10.1002/jhet.5570340318</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0022-152X |
| ispartof | Journal of heterocyclic chemistry, 1997-05, Vol.34 (3), p.817-821 |
| issn | 0022-152X 1943-5193 |
| language | eng |
| recordid | cdi_crossref_primary_10_1002_jhet_5570340318 |
| source | Access via Wiley Online Library |
| title | Unexpected formation of a xanthone in the synthesis of a bisbenzoxazole |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-23T10%3A03%3A59IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-istex_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Unexpected%20formation%20of%20a%20xanthone%20in%20the%20synthesis%20of%20a%20bisbenzoxazole&rft.jtitle=Journal%20of%20heterocyclic%20chemistry&rft.au=Dotrong,%20My&rft.date=1997-05&rft.volume=34&rft.issue=3&rft.spage=817&rft.epage=821&rft.pages=817-821&rft.issn=0022-152X&rft.eissn=1943-5193&rft_id=info:doi/10.1002/jhet.5570340318&rft_dat=%3Cistex_cross%3Eark_67375_WNG_PDRDJV2X_2%3C/istex_cross%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 |