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Updated: Feb 13, 2026

Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers
Published on: June 30, 2018
Catalytic Asymmetric [2+3] Cyclizations of Azlactones with Azonaphthalenes
Chun Ma1, Jia-Yu Zhou1, Yi-Zhu Zhang1
1School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, China.
Abstract:
The first catalytic asymmetric [2+3] cyclization of azlactones with azonaphthalenes has been established. This strategy allowed the synthesis of a variety of chiral isatin derivatives in generally good yields and excellent enantioselectivities (up to 99 % yield, 98 % ee). The developed reaction has not only established a catalytic enantioselective [2+3] cyclization using azlactones as two-carbon building blocks, but also enriches the chemistry of catalytic asymmetric cyclizations of azonaphthalenes. In addition, this protocol will provide a useful method for constructing enantioenriched 3,3'-disubstituted isatin-type frameworks.
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