CO 的双膦化反应：二磷酰基脲的一种简便合成路线。
Double Phosphinoboration of CO : A Facile Route to Diphospha-Ureas.
机构信息
Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, M5S 3H6, Canada.
Mulliken Center for Theoretical Chemistry, University of Bonn, Beringstrasse 4, 53115, Bonn, Germany.
出版信息
Chemistry. 2019 Sep 18;25(52):12063-12067. doi: 10.1002/chem.201903407. Epub 2019 Aug 23.
The reactions of CO with a series of phosphinoboranes, including R PBpin (R=Ph, tBu; pin=pinacol), R PBMes (R=Ph, tBu; Mes=2,4,6-Me -C H ), and R PBcat (R=Ph, tBu, Mes; cat=catechol) are described. Although R PBpin and R PBMes afford products of the form R PCO Bpin (R=Ph 1, tBu 4) and R PCO BMes (R=Ph 2, tBu 3), respectively, R PBcat lead to further reaction affording the diphospha-ureas, (R P) CO (R=Ph 5, tBu 6, Mes 7), together with O(Bcat) . Computational studies provide insight into the mechanism, revealing an intermediate derived from double phosphinoboration of CO .
描述了一系列膦硼烷与 CO 的反应，包括 R PBpin（R=Ph，tBu；pin=pinacol）、R PBMes（R=Ph，tBu；Mes=2,4,6-Me -C H ）和 R PBcat（R=Ph，tBu，Mes；cat=catechol）。尽管 R PBpin 和 R PBMes 分别生成了 R PCO Bpin（R=Ph 1 ，tBu 4 ）和 R PCO BMes（R=Ph 2 ，tBu 3 ）的产物，但 R PBcat 会进一步反应生成二磷酰胺，（R P ）CO（R=Ph 5 ，tBu 6 ，Mes 7 ），同时还有 O（Bcat ）。计算研究提供了对反应机制的深入了解，揭示了源自 CO 的双膦硼化的中间体。
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