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Regiocontrolled Synthesis of Pyrrole-2-carboxaldehydes and 3-Pyrrolin-2-ones from Pyrrole Weinreb Amides
A regiocontrolled synthesis of 3,4-disubstituted pyrrole-2-carboxaldehydes was completed in two steps from acyclic starting materials. A Barton−Zard pyrrole synthesis between N-methoxy-N-methyl-2-isocyanoacetamide and α-nitroalkenes or β-nitroacetates provided N-methoxy-N-methyl pyrrole-2-carboxamid...
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Published in: | Journal of organic chemistry 2006-08, Vol.71 (17), p.6678-6681 |
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container_issue | 17 |
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container_title | Journal of organic chemistry |
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creator | Coffin, Aaron R Roussell, Michael A Tserlin, Elina Pelkey, Erin T |
description | A regiocontrolled synthesis of 3,4-disubstituted pyrrole-2-carboxaldehydes was completed in two steps from acyclic starting materials. A Barton−Zard pyrrole synthesis between N-methoxy-N-methyl-2-isocyanoacetamide and α-nitroalkenes or β-nitroacetates provided N-methoxy-N-methyl pyrrole-2-carboxamides (pyrrole Weinreb amides), which were converted into the corresponding pyrrole-2-carboxaldehydes by treatment with lithium aluminum hydride. A regioselective oxidation of the pyrrole-2-carboxaldehydes gave the corresponding 3,4-disubstituted 3-pyrrolin-2-ones. |
doi_str_mv | 10.1021/jo061043m |
format | article |
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A Barton−Zard pyrrole synthesis between N-methoxy-N-methyl-2-isocyanoacetamide and α-nitroalkenes or β-nitroacetates provided N-methoxy-N-methyl pyrrole-2-carboxamides (pyrrole Weinreb amides), which were converted into the corresponding pyrrole-2-carboxaldehydes by treatment with lithium aluminum hydride. 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Org. Chem</addtitle><description>A regiocontrolled synthesis of 3,4-disubstituted pyrrole-2-carboxaldehydes was completed in two steps from acyclic starting materials. A Barton−Zard pyrrole synthesis between N-methoxy-N-methyl-2-isocyanoacetamide and α-nitroalkenes or β-nitroacetates provided N-methoxy-N-methyl pyrrole-2-carboxamides (pyrrole Weinreb amides), which were converted into the corresponding pyrrole-2-carboxaldehydes by treatment with lithium aluminum hydride. A regioselective oxidation of the pyrrole-2-carboxaldehydes gave the corresponding 3,4-disubstituted 3-pyrrolin-2-ones.</description><subject>Amides - chemistry</subject><subject>Chemistry</subject><subject>Cyanides - chemistry</subject><subject>Exact sciences and technology</subject><subject>Heterocyclic compounds</subject><subject>Heterocyclic compounds with only one n hetero atom and condensed derivatives</subject><subject>Molecular Structure</subject><subject>Organic chemistry</subject><subject>Preparations and properties</subject><subject>Pyrroles - chemical synthesis</subject><subject>Pyrroles - chemistry</subject><subject>Pyrrolidines - chemical synthesis</subject><subject>Pyrrolidines - chemistry</subject><subject>Stereoisomerism</subject><issn>0022-3263</issn><issn>1520-6904</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNpt0U1PGzEQBmCralUC5dA_gPbSShxc_LHej2OKGkCKBCWBHi2vPSamuza1NxL59xglkEt9seR5ZjR6jdBXSn5QwujZYyAVJSUfPqAJFYzgqiXlRzQhhDHMWcUP0GFKjyQfIcRndEAzoLSmE7S6hQcXdPBjDH0Pplhs_LiC5FIRbHGzifkZMMNaxS48q97AamMgFcqbguNt3fkMgs-vNobhran4A85H6Irp4HLHF_TJqj7B8e4-QnezX8vzSzy_vrg6n86xKst6xMIYbY2puVG0VYaxxtjKso6DodQaTTpmy6oWJW2EIrzqGKsbAtoQ23bQtvwIfd_OfYrh3xrSKAeXNPS98hDWSVZNzRtRigxPt1DHkFIEK5-iG1TcSErka6zyPdZsT3ZD190AZi93OWbwbQdU0qq3UXnt0t41JP9C--rw1rk0wvN7XcW_sqp5LeTyZiHbi9nvn_e3M3m_n6t0yvuso8_Z_WfBFx3fnAQ</recordid><startdate>20060818</startdate><enddate>20060818</enddate><creator>Coffin, Aaron R</creator><creator>Roussell, Michael A</creator><creator>Tserlin, Elina</creator><creator>Pelkey, Erin T</creator><general>American Chemical Society</general><scope>BSCLL</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20060818</creationdate><title>Regiocontrolled Synthesis of Pyrrole-2-carboxaldehydes and 3-Pyrrolin-2-ones from Pyrrole Weinreb Amides</title><author>Coffin, Aaron R ; Roussell, Michael A ; Tserlin, Elina ; Pelkey, Erin T</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a447t-5ddcfdd73da19ad228df6f2b3ed11fdc0b2f46754185a036b22780ecd0f9be993</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Amides - chemistry</topic><topic>Chemistry</topic><topic>Cyanides - chemistry</topic><topic>Exact sciences and technology</topic><topic>Heterocyclic compounds</topic><topic>Heterocyclic compounds with only one n hetero atom and condensed derivatives</topic><topic>Molecular Structure</topic><topic>Organic chemistry</topic><topic>Preparations and properties</topic><topic>Pyrroles - chemical synthesis</topic><topic>Pyrroles - chemistry</topic><topic>Pyrrolidines - chemical synthesis</topic><topic>Pyrrolidines - chemistry</topic><topic>Stereoisomerism</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Coffin, Aaron R</creatorcontrib><creatorcontrib>Roussell, Michael A</creatorcontrib><creatorcontrib>Tserlin, Elina</creatorcontrib><creatorcontrib>Pelkey, Erin T</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of organic chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Coffin, Aaron R</au><au>Roussell, Michael A</au><au>Tserlin, Elina</au><au>Pelkey, Erin T</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Regiocontrolled Synthesis of Pyrrole-2-carboxaldehydes and 3-Pyrrolin-2-ones from Pyrrole Weinreb Amides</atitle><jtitle>Journal of organic chemistry</jtitle><addtitle>J. Org. Chem</addtitle><date>2006-08-18</date><risdate>2006</risdate><volume>71</volume><issue>17</issue><spage>6678</spage><epage>6681</epage><pages>6678-6681</pages><issn>0022-3263</issn><eissn>1520-6904</eissn><coden>JOCEAH</coden><abstract>A regiocontrolled synthesis of 3,4-disubstituted pyrrole-2-carboxaldehydes was completed in two steps from acyclic starting materials. A Barton−Zard pyrrole synthesis between N-methoxy-N-methyl-2-isocyanoacetamide and α-nitroalkenes or β-nitroacetates provided N-methoxy-N-methyl pyrrole-2-carboxamides (pyrrole Weinreb amides), which were converted into the corresponding pyrrole-2-carboxaldehydes by treatment with lithium aluminum hydride. A regioselective oxidation of the pyrrole-2-carboxaldehydes gave the corresponding 3,4-disubstituted 3-pyrrolin-2-ones.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>16901171</pmid><doi>10.1021/jo061043m</doi><tpages>4</tpages></addata></record> |
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source | American Chemical Society:Jisc Collections:American Chemical Society Read & Publish Agreement 2022-2024 (Reading list) |
subjects | Amides - chemistry Chemistry Cyanides - chemistry Exact sciences and technology Heterocyclic compounds Heterocyclic compounds with only one n hetero atom and condensed derivatives Molecular Structure Organic chemistry Preparations and properties Pyrroles - chemical synthesis Pyrroles - chemistry Pyrrolidines - chemical synthesis Pyrrolidines - chemistry Stereoisomerism |
title | Regiocontrolled Synthesis of Pyrrole-2-carboxaldehydes and 3-Pyrrolin-2-ones from Pyrrole Weinreb Amides |
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