Synthesis 2024; 56(05): 787-794
DOI: 10.1055/a-2206-3750
paper

Sequential One-Pot Synthesis of β-Amino-γ-keto-malonates from Nitro-Substituted Donor–Acceptor Cyclopropanes

Subramani Selvi
,
Maniarasu Meenakshi
,
Chidambaram Visalini
,
Kannupal Srinivasan
The authors thank Council of Scientific and Industrial Research (CSIR), India for financial support and Department of Science and Technology, Fund for Improvement of Science and Technology Infrastructure in Universities and Higher Educational Institutions (DST-FIST) for instrumentation facilities at the School of Chemistry, Bharathidasan University. S. S. thanks the University Grants Commission (UGC) for a BSR-RFSMS fellowship.


Abstract

A sequential one-pot procedure has been developed to access β-amino-γ-keto-malonates from nitro-substituted donor–acceptor cyclopropanes and four different nitrogen heterocycles. The reaction proceeds through in situ generation of aroylmethylidene malonates from 1-aryl-2-nitrocyclopropanes via Kornblum-type ring-opening oxidation using DMSO and subsequent aza-Michael addition with the nitrogen heterocycles. To prove the synthetic utility of the resulting products, one of them was transformed into a pyridazinone derivative.

Supporting Information



Publication History

Received: 26 July 2023

Accepted after revision: 08 November 2023

Accepted Manuscript online:
08 November 2023

Article published online:
11 December 2023

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