期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 85, 期 21, 页码 14229-14239出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.0c02087
关键词
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资金
- University Grants Commission in India
- Dr. Reddy's Laboratories
- Dr. Kallam Anji Reddy Chair Professorship at the University of Hyderabad
A new class of spiroannulated pyrazolone scaffolds have been assembled from diverse o-haloaryl ynones and beta-bromoalkenyl ynones via base mediated, one-pot, metal free, orthogonal strapping (tethering) mediated by the recursive anion(s) derived from pyrazolones. These convenient, preparatively useful transformations proceed through either a tandem Michael addition-intramolecular SNAr reaction or a tandem Michael addition-intramolecular Ad(N)E process to furnish a range of pharmacophoric, diverse, spiroannulated pyrazolones from readily accessible precursors.
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