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Synthesis of silica-supported poly-γ-diphenylarsinopropylsiloxane palladium complex and its catalytic behavior for Heck carbonylation of aryl halides

✍ Scribed by Mingzhong Cai; Yizheng Huang; Ronghua Hu; Caisheng Song

Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
68 KB
Volume
208
Category
Article
ISSN
1381-1169

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✦ Synopsis

A silica-supported poly-␥-diphenylarsinopropylsiloxane palladium complex has been prepared from ␥-chloropropyltriethoxysilane via immobilization on fumed silica, followed by reacting with potassium diphenylarsenide in THF and then the reaction with palladium chloride. It is an efficient catalyst for Heck carbonylation of aryl halides under atmospheric pressure of carbon monoxide. This polymeric palladium catalyst can be recovered and reused.

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Silica-supported poly-γ-methylselenoprop
Silica-supported poly-γ-methylselenopropylsiloxane palladium complex: An efficient catalyst for Heck carbonylation of aryl halides
✍ Cai Mingzhong; Zhou Jun; Zhao Hong; Song Caisheng 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 66 KB

A silica-supported poly-g-methylselenopropylsiloxane palladium complex has been prepared from g-chloropropyltriethoxysilane via immobilization on fumed silica, followed by reacting with sodium methylselenolate and then the reaction with palladium chloride. It is an efficient catalyst for Heck carbon