期刊
CHEMICAL COMMUNICATIONS
卷 55, 期 43, 页码 6094-6097出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9cc02232e
关键词
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资金
- NSF of China [21572072, 21602064]
- Xiamen Southern Oceanographic Centre [15PYY052SF01]
- Science and Technology Bureau of Xiamen City [3502Z20150054]
- Subsidized Project for Postgraduate's Innovative Fund in Scientific Research of Huaqiao University
A facile synthesis of various pyrazolo[1,2-a] indazoles from pyrazolidinones and propiolates via iridium( III)-catalysed C-H bond activation/subsequent [4+1] cyclization has been developed. The reaction proceeds smoothly under mild reaction conditions and propiolates act as a novel C-1 synthon. This transformation represents a redox-neutral process, exhibits a highly regioselectivity, and tolerates various functional groups.
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