Journal
RSC ADVANCES
Volume 7, Issue 85, Pages 54087-54090Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ra12117b
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Funding
- NSFC [21472072, 21302077, 21290183]
- Program for Changjiang Scholars and Innovative Research Team in University [PCSIRT: IRT_15R28]
- FRFCU [lzujbky-2016-ct02, lzujbky-2017-90]
- 111 Program of MOE
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A route to rare spiro-3H-indazoles bearing a carbonyl group adjacent to the spirocyclic quarternary carbon via 1,3-dipolar cycloaddition reaction of arynes with 6-diazocyclohex-2-en-1-one derivatives under mild conditions has been developed. Further transformation of these unique spiro-3H-indazoles via an acidor heat-mediated rearrangement to fused-2H-indazoles and an interesting reduction/ring-opening/reduction sequence are also described.
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