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Semihydrogenation of alkynes in the presence of Ni(0) catalyst using ammonia-borane and sodium borohydride as hydrogen sources

Paper ID Volume ID Publish Year Pages File Format Full-Text
41973 45906 2010 6 PDF Available
Title
Semihydrogenation of alkynes in the presence of Ni(0) catalyst using ammonia-borane and sodium borohydride as hydrogen sources
Abstract

The selective semihydrogenation of terminal and internal alkynes was achieved using complexes of the type [(P-P)Ni(η2-C,C-alkyne)] (P-P = chelating diphospine ligands), which behave as the active catalysts and were generated in situ. Boron-hydride derivatives such as ammonia-borane (AB) or sodium boron hydride (SBH) were used as hydrogen sources. In the case of internal alkynes, the stereoselective formation of cis- or trans-alkenes was achieved in high yields and under mild reaction conditions.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (84 K)Download as PowerPoint slideResearch highlights▶ The selective semihydrogenation of terminal and internal alkynes was achieved. ▶ The use of catalytic amounts of Ni(0) allowed a mild process. ▶ Ammonia-borane (AB) or sodium boron hydride (SBH) was used as hydrogen source. ▶ The stereoselective formation of cis or trans-alkenes was achieved in high yields.

Keywords
Alkyne semihydrogenation; Nickel complexes; Ammonia-borane; Sodium borohydride; Hydrogen sources
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Semihydrogenation of alkynes in the presence of Ni(0) catalyst using ammonia-borane and sodium borohydride as hydrogen sources
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 385, Issues 1–2, 15 September 2010, Pages 108–113
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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