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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Stable crystalline annulated diaminocarbenes: coordination with rhodium(I), iridium(I) and catalytic hydroformylation studies
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Stable crystalline annulated diaminocarbenes: coordination with rhodium(I), iridium(I) and catalytic hydroformylation studies

机译：稳定的结晶环二氨基卡宾：与铑（I），铱（I）的配位和催化加氢甲酰化研究

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摘要

Stable annulated diaminocarbene ligands 7,9-bis(2,4,6-trimethylphenyl)-6b,9a-dihydroace naphtha[1,2-d]imidazolin-2-ylidene and 7,9-bis(2,6-diisopropylphenyl)-6b,9a-dihydroacenaphtho-[1,2-d]imidazolin -2-ylidene; designated as (BIAN-SIMes, 5a,) and (BIAN-SIPr, 5b), respectively, have been prepared. The base dependent decomposition of imidazolinium salts via ring opening at the backbone was also observed. The corresponding rhodium(I) and iridum(I) complexes (eta(4)-1,5-COD)M(BIAN-SIMes) Cl and (eta(4)-1,5-COD)M(BIAN-SIPr)Cl; M = Rh (6a, 6b) and Ir (7a, 7b) have been synthesised by the reaction of free carbene with [M(eta(4)-1,5-COD)(mu-Cl)](2); where M = Rh, Ir. The cationic Ir(I) complexes [(eta(4)-1,5-COD)Ir(BIAN-SIMes)Py]BF4 8a and [(eta(4)-1,5-COD)Ir(BIAN-SIPr)Py]PF6 8b have also been synthesised. Compounds 4b, 5a, 6a, 6b, 7b and 8b have been structurally characterised. The catalytic activities for the rhodium(I) complexes 6a and 6b were evaluated for the hydroformylation of 1-octene.
机译：稳定的环二氨基卡宾配体7,9-双（2,4,6-三甲基苯基）-6b，9a-二氢石脑油[1,2-d]咪唑啉-2-亚烷基和7,9-双（2,6-二异丙基苯基） -6b，9a-二氢ac- [1,2-d]咪唑啉-2-亚基;已经准备好分别指定为（BIAN-SIMes，5a）和（BIAN-SIPr，5b）的对象。还观察到咪唑啉盐通过主链上的开环的碱依赖性分解。相应的铑（I）和铱（I）配合物（eta（4）-1,5-COD）M（BIAN-SIMes）Cl和（eta（4）-1,5-COD）M（BIAN-SIPr）氯M = Rh（6a，6b）和Ir（7a，7b）是通过游离卡宾与[M（eta（4）-1,5-COD）（mu-Cl）]（2）反应合成的;其中M = Rh，Ir阳离子Ir（I）络合物[（eta（4）-1,5-COD）Ir（BIAN-SIMes）Py] BF4 8a和[（eta（4）-1,5-COD）Ir（BIAN-SIPr） [Py] PF6 8b也已经合成。化合物4b，5a，6a，6b，7b和8b在结构上已得到表征。对于1-辛烯的加氢甲酰化，评价了铑（I）配合物6a和6b的催化活性。

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