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Catalytic Dehydrogenation of (Di)Amine-Boranes with a Geometrically Constrained Phosphine-Borane Lewis Pair
ACS Catalysis ( IF 11.3 ) Pub Date : 2018-04-13 00:00:00 , DOI: 10.1021/acscatal.8b00152 Maxime Boudjelel 1 , E. Daiann Sosa Carrizo 2 , Sonia Mallet−Ladeira 3 , Stéphane Massou 3 , Karinne Miqueu 2 , Ghenwa Bouhadir 1 , Didier Bourissou 1
ACS Catalysis ( IF 11.3 ) Pub Date : 2018-04-13 00:00:00 , DOI: 10.1021/acscatal.8b00152 Maxime Boudjelel 1 , E. Daiann Sosa Carrizo 2 , Sonia Mallet−Ladeira 3 , Stéphane Massou 3 , Karinne Miqueu 2 , Ghenwa Bouhadir 1 , Didier Bourissou 1
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The o-phenylene bridged phosphine-borane iPr2P(o-C6H4)B(Fxyl)22 was prepared. Despite ring strain, it adopts a closed form, as substantiated by NMR, XRD, and DFT analyses. However, the corresponding open form is only slightly higher in energy. The dormant Lewis pair 2 proved to efficiently catalyze the dehydrogenation of a variety of amine- and diamine-boranes under mild conditions. The corresponding phosphonium-borate iPr2PH(o-C6H4)BH(Fxyl)23 was authenticated as a key intermediate of these dehydrogenation reactions. The propensity of 3 to release H2 plays a major role in the catalytic turnover.
中文翻译：
具有几何约束的膦-硼烷路易斯对的（二）胺-硼烷的催化脱氢
制备邻苯撑桥连的膦-硼烷i Pr 2 P（o -C 6 H 4）B（己基）2 2。尽管有环应变，但仍采用密闭形式，通过NMR，XRD和DFT分析证实。但是，相应的开放形式在能量上仅稍高一些。休眠的路易斯对2被证明可以在温和的条件下有效催化多种胺和二胺-硼烷的脱氢反应。相应的硼酸i i Pr 2 PH（o -C 6 H 4）BH（Fxyl）2 3被鉴定为这些脱氢反应的关键中间体。3释放H 2的倾向在催化周转中起主要作用。
更新日期：2018-04-13
中文翻译：
具有几何约束的膦-硼烷路易斯对的（二）胺-硼烷的催化脱氢
制备邻苯撑桥连的膦-硼烷i Pr 2 P（o -C 6 H 4）B（己基）2 2。尽管有环应变，但仍采用密闭形式，通过NMR，XRD和DFT分析证实。但是，相应的开放形式在能量上仅稍高一些。休眠的路易斯对2被证明可以在温和的条件下有效催化多种胺和二胺-硼烷的脱氢反应。相应的硼酸i i Pr 2 PH（o -C 6 H 4）BH（Fxyl）2 3被鉴定为这些脱氢反应的关键中间体。3释放H 2的倾向在催化周转中起主要作用。
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