NDLI: A C1-symmetric N-heterocyclic carbene catalysed oxidative spiroannulation of isatin-derived enals: highly enantioselective synthesis of spirooxindole δ-lactones

Content Provider	Semantic Scholar
Author	Lin, Jun-Bing Cheng, X. Tian, Xiao-Dong Xu, Guo-Qiang Luo, Yong-Chun Xu, Peng-Fei
Copyright Year	2018
Abstract	A C1-symmetric N-heterocyclic carbene (NHC)-catalysed activation of isatin-derived enals under oxidative conditions was achieved. The in situ generated α,β-unsaturated acyl azolium species was efficiently trapped by 1,3-dicarbonyl compounds via a Michael addition/spiroannualtion cascade, delivering a series of synthetically important spirooxindole δ-lactones with up to 96% enantioselectivity.
Starting Page	15444
Ending Page	15447
Page Count	4
File Format	PDF HTM / HTML
DOI	10.1039/c8ra02009d
Volume Number	8
Alternate Webpage(s)	http://www.rsc.org/suppdata/c8/ra/c8ra02009d/c8ra02009d1.pdf
Alternate Webpage(s)	https://doi.org/10.1039/c8ra02009d
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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