✦ LIBER ✦

Ruthenium(II)-Catalyzed [2+2] Cycloadditions of anti 7-Substituted Norbornenes

✍ Scribed by Robert W. Jordan; Paul Le Marquand; William Tam

Publisher: John Wiley and Sons
Year: 2008
Tongue: English
Weight: 188 KB
Volume: 2008
Category: Article
ISSN: 1434-193X
DOI: 10.1002/ejoc.200700706

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The ruthenium(II)‐catalyzed [2+2] cycloadditions of anti 7‐substituted norbornenes with an alkyne were investigated. The cycloadditions were found to proceed with a high degree of stereoselectivity, giving only the exo stereoisomers in moderate to good yields using an improved protocol. Comparative rate studies between a variety of anti 7‐substituted norbornenes and an alkyne revealed that the reactivity of the alkene component decreases dramatically as the alkene becomes more electron deficient.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)

📜 SIMILAR VOLUMES

ChemInform Abstract: Ruthenium(II)-Catal

ChemInform Abstract: Ruthenium(II)-Catalyzed [2 + 2] Cycloadditions of anti 7-Substituted Norbornenes.

✍ Robert W. Jordan; Paul Le Marquand; William Tam 📂 Article 📅 2008 🏛 John Wiley and Sons ⚖ 25 KB 👁 2 views

ChemInform Abstract: Ruthenium-Catalyzed

ChemInform Abstract: Ruthenium-Catalyzed [2 + 2] Cycloadditions of 2-Substituted Norbornenes.

✍ Robert W. Jordan; William Tam 📂 Article 📅 2001 🏛 John Wiley and Sons ⚖ 30 KB 👁 2 views

Ruthenium-Catalyzed [2 + 2] Cycloadditio

Ruthenium-Catalyzed [2 + 2] Cycloadditions Between C1-Substituted 7-Oxanorbornadienes and Alkynes.

✍ Ryan R. Burton; William Tam 📂 Article 📅 2007 🏛 John Wiley and Sons ⚖ 32 KB

## 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, please click on HTML or PDF.

[2 + 2]Cycloaddition of Norbornenes with

[2 + 2]Cycloaddition of Norbornenes with Alkynes Catalyzed by Ruthenium Complexes

✍ Prof. Dr. Take-aki Mitsudo; Hiroshi Naruse; Dr. Teruyuki Kondo; Yoshihiko Ozaki; 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 249 KB 👁 1 views

Ruthenium-Catalyzed [2 + 2] Cycloadditio

Ruthenium-Catalyzed [2 + 2] Cycloadditions of Ynamides.

✍ Nicole Riddell; Karine Villeneuve; William Tam 📂 Article 📅 2006 🏛 John Wiley and Sons ⚖ 36 KB 👁 2 views

## Abstract For Abstract see ChemInform Abstract in Full Text.

Alkynyl Halides in Ruthenium(II)-Catalyz

Alkynyl Halides in Ruthenium(II)-Catalyzed [2+2] Cycloadditions of Bicyclic Alkenes

✍ Anna Allen; Karine Villeneuve; Neil Cockburn; Elisabeth Fatila; Nicole Riddell; 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 347 KB 👁 2 views

## Abstract Ru‐catalyzed [2+2] cycloadditions between bicyclic alkenes and alkynyl halides were found to occur in moderate to good yields. The presence of the halide moiety greatly enhances the reactivity of the alkyne component in the cycloaddition and can be transformed into a variety of products