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ChemInform Abstract: Highly Enantioselective 1,4-Michael Additions of Nucleophiles to Unsaturated Aryl Ketones with Organocatalysis of Bifunctional Cinchona Alkaloids.

✍ Scribed by Cristina G. Oliva; Artur M. S. Silva; Diana I. S. P. Resende; Filipe A. A. Paz; Jose A. S. Cavaleiro

Publisher
John Wiley and Sons
Year
2010
Weight
42 KB
Volume
41
Category
Article
ISSN
0931-7597

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✦ Synopsis

Abstract

Asymmetric 1,4‐Michael additions of malononitrile and nitromethane to a wide spectrum of α,β,γ,δ‐unsaturated aryl ketones assisted by organocatalysis by bifunctional cinchona alkaloids is developed.

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Highly Enantioselective 1,4-Michael Addi
Highly Enantioselective 1,4-Michael Additions of Nucleophiles to Unsaturated Aryl Ketones with Organocatalysis by Bifunctional Cinchona Alkaloids
✍ Cristina G. Oliva; Artur M. S. Silva; Diana I. S. P. Resende; Filipe A. A. Paz; 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 396 KB

## Abstract The development of general and efficient asymmetricorganocatalytic additions of malononitrile and nitromethane to 1,5‐diarylpenta‐2,4‐dien‐1‐ones (cinnamylideneacetophenones) catalyzed by cinchona organocatalysts is reported. The reactions afforded excellent enantioselectivities (up to

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ChemInform Abstract: Catalytic Enantioselective Michael Addition of 1-Fluoro-bis(phenylsulfonyl)methane to α,β-Unsaturated Ketones Catalyzed by Cinchona Alkaloids.
✍ Tatsuya Furukawa; Norio Shibata; Satoshi Mizuta; Shuichi Nakamura; Takeshi Toru; 📂 Article 📅 2009 🏛 John Wiley and Sons ⚖ 35 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v