✦ LIBER ✦

Suppression of double bond isomerisation in intramolecular Heck reactions using supercritical carbon dioxide

✍ Scribed by Najam Shezad; Anthony A Clifford; Christopher M Rayner

Book ID: 104211461
Publisher: Elsevier Science
Year: 2001
Tongue: French
Weight: 52 KB
Volume: 42
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)01917-1

No coin nor oath required. For personal study only.

✦ Synopsis

The modified reagent system [Pd(OCOCF 3 ) 2 /P(2-furyl) 3 /EtN i Pr 2 ] gives enhanced conversions compared with standard conditions [Pd(OAc) 2 /PPh 3 /NEt 3 ] for intramolecular Heck cyclisations, and when used in scCO 2 results in the suppression of double bond isomerisation to minimal levels, which is otherwise a serious competing side reaction in conventional solvents.

📜 SIMILAR VOLUMES

Heck reactions using water-soluble metal

Heck reactions using water-soluble metal complexes in supercritical carbon dioxide

✍ Bhalchandra M. Bhanage; Yutaka Ikushima; Masayuki Shirai; Masahiko Arai 📂 Article 📅 1999 🏛 Elsevier Science 🌐 French ⚖ 262 KB

Heck vinylation reaction was studied using Pd(OAc)2fI'PPTS catalyst system in supercritical carbon dioxide. The addition of co-solvents such as water and ethylene glycol significantly enhances the rate of reaction without leaching of Pd into the product phase. The reactants/products can be easily se

Suppression of alkene isomerisation in p

Suppression of alkene isomerisation in products from intramolecular heck reactions by addition of Tl(1) salts.

✍ Ronald Grigg; Vani Loganathan; Vijayaratnam Santhakumar; Visuvanathar Sridharan; 📂 Article 📅 1991 🏛 Elsevier Science 🌐 French ⚖ 198 KB

ChemInform Abstract: Carbon—Carbon Bond

ChemInform Abstract: Carbon—Carbon Bond Forming Reactions in Supercritical Carbon Dioxide in the Presence of a Supported Palladium Catalyst.

✍ Sandro Cacchi; Giancarlo Fabrizi; Francesco Gasparrini; Claudio Villani 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 30 KB 👁 1 views

Use of fluorinated palladium sources for

Use of fluorinated palladium sources for efficient Pd-catalysed coupling reactions in supercritical carbon dioxide

✍ Najam Shezad; R.Scott Oakes; Anthony A Clifford; Christopher M Rayner 📂 Article 📅 1999 🏛 Elsevier Science 🌐 French ⚖ 254 KB

Catalyst Preparation Using Supercritical

Catalyst Preparation Using Supercritical Carbon Dioxide: Preparation of Rh/FSM-16 Catalysts and Their Catalytic Performances in Butane Hydrogenolysis Reaction

✍ Paresh L. Dhepe; Atsushi Fukuoka; Masaru Ichikawa 📂 Article 📅 2002 🏛 Springer US 🌐 English ⚖ 351 KB

ChemInform Abstract: Lewis Acid Catalysi

ChemInform Abstract: Lewis Acid Catalysis in Supercritical Carbon Dioxide. Use of Scandium Tris(heptadecafluorooctanesulfonate) as a Lewis Acid Catalyst in Diels—Alder and Aza Diels—Alder Reactions.

✍ Jun-ichi Matsuo; Takehiro Tsuchiya; Kazunori Odashima; Shu Kobayashi 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 30 KB 👁 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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