A Novel Triphosphoramidite Ligand for Highly Regioselective Linear Hydroformylation of Terminal and Internal Olefins

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• 作者：Caiyou Chen ; Yu Qiao ; Huiling Geng ; Xumu Zhang
• 刊名：Organic Letters
• 出版年：2013
• 出版时间：March 1, 2013
• 年：2013
• 卷：15
• 期：5
• 页码：1048-1051
• 全文大小：224K
• 年卷期：v.15,no.5(March 1, 2013)
• ISSN：1523-7052

文摘

The first triphosphorus ligand has been designed and synthesized for highly regioselective linear hydroformylations. A very high l/b ratio (up to 471, 99.8% linear selectivity) was obtained in the linear hydroformylation of representative terminal and internal olefins. For the range of substrates tested, the regioselectivities achieved utilizing the novel triphosphoramidite ligand were much better than those of the bisphosphoramidite ligand and close to those of the tetraphosphoramidite ligand.