ChemInform Abstract: Enantioselective [4 + 2] Cycloadditions of 2‐Vinyl‐1H‐indoles with 3‐Nitro‐2H‐chromenes Catalyzed by a Zn(OTf)2/Bis(oxazoline) Complex: An Efficient Approach to Fused Heterocycles with a Quaternary Stereocenter.
Cheminform（2012）
Abstract
A variety of fused heterocycles is synthesized with high yields, excellent diastereoselectivities and mostly high enantioselectivities except for nitropyran (VI).
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Key words
fused heterocycles,enantioselective,quaternary stereocenter,cheminform abstract,h-indoles,h-chromenes
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