Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 82, Issue 19, Pages 10433-10443Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.7b01907
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Funding
- National Natural Science Foundation of China [21342004, 51573066]
- Syngenta Ph.D. (postgraduate) program
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An efficient 1,3-dipolar cycloaddition of 3-ylideneoxindoles with in-situ-generated alpha-diazoketones to potentially biological active spiro[pyrazolin-3,3'-oxindoles] 4 with excellent regioselectivity and diastereoselectivity and synthetically useful building block 3-arylcarbonylmethyl substituted ylideneoxindoles 5 in different conditions has been developed. This method has advantages of mild conditions, simple workup, and wide substrate scopes as well as without using any transition metal catalyst.
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