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Iridium-catalyzed hydroboration of alkenes with pinacolborane

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Title: Iridium-catalyzed hydroboration of alkenes with pinacolborane
Authors: Yamamoto, Yasunori Browse this author →KAKEN DB
Fujikawa, Rhyou Browse this author
Umemoto, Tomokazu Browse this author
Miyaura, Norio Browse this author
Keywords: Hydroboration
Issue Date: 15-Nov-2004
Publisher: Elsevier Ltd
Journal Title: Tetrahedron
Volume: 60
Issue: 47
Start Page: 10695
End Page: 10700
Publisher DOI: 10.1016/j.tet.2004.09.014
Abstract: Hydroboration of terminal and internal alkenes with pinacolborane (1.2 equiv) was carried out at room temperature in the presence of an iridium(I) catalyst (3 mol%). Addition of dppm (2 equiv) to [Ir(cod)Cl]2 gave the best catalyst for hydroboration of aliphatic terminal and internal alkenes at room temperature, resulting in addition of the boron atom to the terminal carbon of 1-alkenes with more than 99% selectivities. On the other hand, a complex prepared from dppe (2 equiv) and [Ir(cod)Cl]2 resulted in the best yields for vinylarenes such as styrene. These complexes exhibited higher levels of catalyst activity and selectivity than those of corresponding rhodium complexes.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 宮浦 憲夫

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