期刊
ORGANIC & BIOMOLECULAR CHEMISTRY
卷 18, 期 31, 页码 6100-6107出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ob01200a
关键词
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资金
- SERB [EMR/2017/000174]
- UGC, New Delhi
- MHRD
An iodine-catalyzed denitrative imino-diaza-Nazarov cyclization (DIDAN) methodology has been developed for the synthesis of pyrazoles with high to excellent yields by using alpha-nitroacetophenone derivatives andin situgenerated hydrazones. The key transformation of this oxidative 4 pi-electrocyclization proceeds through an enamine-iminium ion intermediate. This rapid one-pot DIDAN protocol results in the selective generation of C-C and C-N bonds and cleavage of a C-N bond.
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