Reaction of Hydrogen or Ammonia with Unsaturated Germanium or Tin Molecules under Ambient Conditions: Oxidative Addition versus Arene Elimination
作者:Yang Peng、Jing-Dong Guo、Bobby D. Ellis、Zhongliang Zhu、James C. Fettinger、Shigeru Nagase、Philip P. Power
DOI:10.1021/ja9068408
日期:2009.11.11
whereas with H(2) the tetravalent hydride Ar'GeH(3) (4) was obtained with Ar'H elimination. In contrast, the reactions with the divalent Sn(II) aryls did not lead to Sn(IV) products. Instead, arene eliminated Sn(II) species were obtained. SnAr(#)(2) reacted with NH(3) to give the Sn(II) amide Ar(#)Sn(mu-NH(2))}(2) (5) and Ar(#)H elimination, whereas no reaction with H(2) could be observed up to 70
通过实验和理论研究了氢或氨与亚锗烯和亚锡基的反应。锗烯 GeAr(#)(2) 的处理 (Ar(#) = C(6)H(3)-2,6-(C(6)H(2)-2,4,6-Me(3)) )(2)) 与 H(2) 或 NH(3) 提供四价产物 Ar(#)(2)GeH(2) (1) 或 Ar(#)(2)Ge(H)NH(2) ( 2)产量高。更拥挤的GeAr'(2)的反应(Ar' = C(6)H(3)-2,6-(C(6)H(3)-2,6-(i)Pr(2)) (2)) 与 NH(3) 也提供四价酰胺 Ar'(2)Ge(H)NH(2) (3),而与 H(2) 四价氢化物 Ar'GeH(3) (4) 是用 Ar'H 消除获得。相反,与二价 Sn(II) 芳基的反应不会产生 Sn(IV) 产物。相反,获得了芳烃消除的 Sn(II) 物质。SnAr(#)(2) 与 NH(3) 反应生成 Sn(II) 酰胺 Ar(#)Sn(mu-NH(2))}(2)