作者:Joel D. Collett、Jeanette A. Krause、Hairong Guan
DOI:10.1021/acs.organomet.1c00694
日期:2022.2.14
The synthesis of two nickel hydride complexes bearing the pyrrole-derived phosphine ligand CyPNH (2-(dicyclohexylphosphino)methyl-1H-pyrrole) was developed, namely, (κP-CyPNH)(κP,κN-CyPN)NiH and the acid-stable trans-(κP-CyPNH)2Ni(OAc)H·HOAc. (κP-CyPNH)(κP,κN-CyPN)NiH stoichiometrically reduces benzaldehyde and acetophenone in a metal–ligand cooperative manner and catalytically dimerizes ethylene and
开发了吡咯衍生膦配体Cy PN H (2-(dicyclohexylphosphino)methyl-1 H -pyrrole) 的两种氢化镍配合物的合成,即(κ P - Cy PN H )(κ P ,κ N - Cy PN)NiH 和酸稳定的反式-(κ P - Cy PN H ) 2 Ni(OAc)H·HOAc。(κ P - Cy PN H )(κ P ,κ N - CyPN)NiH 化学计量以金属配体协同的方式还原苯甲醛和苯乙酮,并催化乙烯二聚化和环异构化 1,5-环辛二烯和 1,5-己二烯。trans -(κ P - Cy PN H ) 2 Ni(OAc)H·HOAc,可从 (κ P - Cy PN H )(κ P ,κ N - Cy PN)NiH 用乙酸质子化得到,催化环化异构化1,5-环辛二烯的合成更有效,并产生热力学上不太有利的 1,5-环辛二烯的环状异构体。