Pd/C-mediated synthesis of α-pyrone fused with a five-membered nitrogen heteroaryl ring: A new route to pyrano[4,3-c]pyrazol-4(1H)-ones

Pd/C-mediated alkynylation of 5-iodo-pyrazole-4-carboxylic acid, involving the first regioselective construction of α-pyrone ring on a pyrazol moiety via tandem coupling–cyclization process, has been developed to afford pyrano[4,3-c]pyrazol-4(1H)-one in a single pot.

Detalles Bibliográficos
Autores principales: Gorja, Dhilli Rao, Batchu, Venkateswara Rao, Ettam, Ashok, Pal, Manojit
Formato: Texto
Lenguaje:English
Publicado: Beilstein-Institut 2009
Materias:
Preliminary Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2839514/
https://www.ncbi.nlm.nih.gov/pubmed/20300500
http://dx.doi.org/10.3762/bjoc.5.64
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author Gorja, Dhilli Rao
Batchu, Venkateswara Rao
Ettam, Ashok
Pal, Manojit
author_facet Gorja, Dhilli Rao
Batchu, Venkateswara Rao
Ettam, Ashok
Pal, Manojit
author_sort Gorja, Dhilli Rao
collection PubMed
description Pd/C-mediated alkynylation of 5-iodo-pyrazole-4-carboxylic acid, involving the first regioselective construction of α-pyrone ring on a pyrazol moiety via tandem coupling–cyclization process, has been developed to afford pyrano[4,3-c]pyrazol-4(1H)-one in a single pot.
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spelling pubmed-28395142010-03-17 Pd/C-mediated synthesis of α-pyrone fused with a five-membered nitrogen heteroaryl ring: A new route to pyrano[4,3-c]pyrazol-4(1H)-ones Gorja, Dhilli Rao Batchu, Venkateswara Rao Ettam, Ashok Pal, Manojit Beilstein J Org Chem Preliminary Communication Pd/C-mediated alkynylation of 5-iodo-pyrazole-4-carboxylic acid, involving the first regioselective construction of α-pyrone ring on a pyrazol moiety via tandem coupling–cyclization process, has been developed to afford pyrano[4,3-c]pyrazol-4(1H)-one in a single pot. Beilstein-Institut 2009-11-11 /pmc/articles/PMC2839514/ /pubmed/20300500 http://dx.doi.org/10.3762/bjoc.5.64 Text en Copyright © 2009, Gorja et al. https://creativecommons.org/licenses/by/2.0https://www.beilstein-journals.org/bjoc/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The license is subject to the Beilstein Journal of Organic Chemistry terms and conditions: (https://www.beilstein-journals.org/bjoc/terms)
spellingShingle Preliminary Communication
Gorja, Dhilli Rao
Batchu, Venkateswara Rao
Ettam, Ashok
Pal, Manojit
Pd/C-mediated synthesis of α-pyrone fused with a five-membered nitrogen heteroaryl ring: A new route to pyrano[4,3-c]pyrazol-4(1H)-ones
title Pd/C-mediated synthesis of α-pyrone fused with a five-membered nitrogen heteroaryl ring: A new route to pyrano[4,3-c]pyrazol-4(1H)-ones
title_full Pd/C-mediated synthesis of α-pyrone fused with a five-membered nitrogen heteroaryl ring: A new route to pyrano[4,3-c]pyrazol-4(1H)-ones
title_fullStr Pd/C-mediated synthesis of α-pyrone fused with a five-membered nitrogen heteroaryl ring: A new route to pyrano[4,3-c]pyrazol-4(1H)-ones
title_full_unstemmed Pd/C-mediated synthesis of α-pyrone fused with a five-membered nitrogen heteroaryl ring: A new route to pyrano[4,3-c]pyrazol-4(1H)-ones
title_short Pd/C-mediated synthesis of α-pyrone fused with a five-membered nitrogen heteroaryl ring: A new route to pyrano[4,3-c]pyrazol-4(1H)-ones
title_sort pd/c-mediated synthesis of α-pyrone fused with a five-membered nitrogen heteroaryl ring: a new route to pyrano[4,3-c]pyrazol-4(1h)-ones
topic Preliminary Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2839514/
https://www.ncbi.nlm.nih.gov/pubmed/20300500
http://dx.doi.org/10.3762/bjoc.5.64
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