✦ LIBER ✦

Asymmetric aldol additions catalyzed by chiral phosphoramides: Electronic effects of the aldehyde component

✍ Scribed by Scott E Denmark; Robert A Stavenger; Ken-Tsung Wong

Book ID: 108379035
Publisher: Elsevier Science
Year: 1998
Tongue: French
Weight: 946 KB
Volume: 54
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(98)00493-1

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

ChemInform Abstract: The Chemistry of Tr

ChemInform Abstract: The Chemistry of Trichlorosilyl Enolates. Part 5. Asymmetric Aldol Additions Catalyzed by Chiral Phosphoramides: Electronic Effects of the Aldehyde Component.

✍ S. E. DENMARK; R. A. STAVENGER; K.-T. WONG 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 38 KB 👁 2 views

Asymmetric allylation of aldehydes catal

Asymmetric allylation of aldehydes catalyzed by substoichiometric amounts of chiral phosphoramides

✍ Katsuhiko Iseki; Yoshichika Kuroki; Mie Takahashi; Yoshiro Kobayashi 📂 Article 📅 1996 🏛 Elsevier Science 🌐 French ⚖ 137 KB

Asymmetric aldol addition of aldehydes t

Asymmetric aldol addition of aldehydes to a difluoroketene silyl acetal catalyzed by chiral Lewis acids

✍ Katsuhiko Iseki; Yoshichika Kuroki; Daisuke Asada; Mie Takahashi; Satoshi Kishim 📂 Article 📅 1997 🏛 Elsevier Science 🌐 French ⚖ 667 KB

Aldol reaction of aldehydes with difluomketene ethyl trimethylsilyl acetal (1) in the presence of a substoichiometric amount of chiral Lewis acid 2 or 3 provides the corresponding ~,a-difluom hydroxy esters 4-12 with high enantioselectivitles (up to 98% ee). Reaction temperature has a great influenc

Mechanistic Insights into the Chiral Pho

Mechanistic Insights into the Chiral Phosphoramide-Catalyzed, Enantioselective Crossed-Aldol Reactions of Aldehydes

✍ Denmark, Scott E.; Bui, Tommy 📂 Article 📅 2005 🏛 American Chemical Society 🌐 English ⚖ 176 KB

ChemInform Abstract: Asymmetric Allylati

ChemInform Abstract: Asymmetric Allylation of Aldehydes Catalyzed by Substoichiometric Amounts of Chiral Phosphoramides.

✍ K. ISEKI; Y. KUROKI; M. TAKAHASHI; Y. KOBAYASHI 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 29 KB

Asymmetric allylation of aromatic aldehy

Asymmetric allylation of aromatic aldehydes catalyzed by chiral phosphoramides prepared from (S)-proline

✍ Katsuhiko Iseki; Yoshichika Kuroki; Mie Takahashi; Satoshi Kishimoto; Yoshiro Ko 📂 Article 📅 1997 🏛 Elsevier Science 🌐 French ⚖ 870 KB

Chiral phosphoramides prepared from (S)-proline were used to catalyze the allylation and crotylation of aromatic aldehydes with allylic trichlorosilanes in good enantioseleetive yields. Phosphoramides 4d and 4m gave chiral homoallylic alcohols and their enantiomers, respectively, with similar levels