da Silva FDC, Fonseca MG, Rianelli RDS, Cunha AC, de Souza MCBV, Ferreira VF. One-pot preparation of substituted pyrroles from alpha-diazocarbonyl compounds.
Beilstein J Org Chem 2008;
4:45. [PMID:
19104671 PMCID:
PMC2605617 DOI:
10.3762/bjoc.4.45]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2008] [Accepted: 11/18/2008] [Indexed: 11/23/2022] Open
Abstract
In this work an efficient one-pot synthesis of substituted pyrroles 7a-n is described, which involves the in situ formation of dihydrofurans ethyl 5-butoxy-2-methyl-4,5-dihydrofuran-3-carboxylate (4), 1-(5-butoxy-2-methyl-4,5-dihydrofuran-3-yl)ethanone (5) and 5-butoxy-4,5-dihydrofuran-3-carbaldehyde (6) followed by reaction with primary amines.
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