Synthesis 2020; 52(17): 2528-2534
DOI: 10.1055/s-0039-1690886
paper
© Georg Thieme Verlag Stuttgart · New York

Synthesis of a Novel 1,4-Dicarbonyl Scaffold – Ethyl 3-Formyl-4,5-dihydrofuran-2-carboxylate – and Its Application to the Synthesis of Pyridazines

Mário A. Marangoni
,
Paulo A. Moraes
,
Adriano F. Camargo
,
Helio G. Bonacorso
,
Marcos A. P. Martins
,
Nilo Zanatta
Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900, Santa Maria, Brazil   Email: nilo.zanatta@ufsm.br
› Author Affiliations
The authors are grateful for financial support from the Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul (FAPERGS/CNPq – PRONEX – Grant No. 16/2551-0000477-3) and fellowships from Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES; M.A.M.) and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq; P.A.M., A.F.C.).
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Publication History

Received: 09 January 2020

Accepted after revision: 15 March 2020

Publication Date:
14 April 2020 (online)


Abstract

The 1,4-dicarbonyl scaffold ethyl 3-formyl-4,5-dihydrofuran-2-carboxylate was obtained through the rearrangement of the parent ethyl 2-(4,5-dihydrofuran-3-yl)-2-oxoacetate and applied to the synthesis of a series of 7-alkoxy-2,3-dihydrofuro[2,3-d]pyridazines. Twelve pyridazines­ were obtained in yields of up to 70%.

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