Evaluation of tuned phosphorus cavitands on catalytic cross-dimerization of terminal alkynes
作者:Naoki Endo、Mao Kanaura、Michael P. Schramm、Tetsuo Iwasawa
DOI:10.1016/j.tetlet.2016.09.039
日期:2016.10
Synthesis of four new bis-phosphorus cavitands is described, including a description of their catalytic use on cross-dimerization of terminal alkynes. The commercially available P[N(CH2CH3)2]3, PhP[N(CH2CH3)2]2, P(OCH3)3, and in situ generated P(NMeBn)3 were reacted with a tetra-ol cavitand platform to provide new phosphorus ligands. These ligands readily formed bis-Au complexes that were examined
描述了四个新的双磷空洞体的合成,包括它们在末端炔烃的交叉二聚反应中的催化用途的描述。将市售的P [N(CH 2 CH 3)2 ] 3,PhP [N(CH 2 CH 3)2 ] 2,P(OCH 3)3以及原位生成的P(NMeBn)3与四氟甲烷反应。 -ol cavitand平台可提供新的磷配体。这些配体容易形成双-Au络合物,经检查可生成反应性谱,用于末端炔烃的催化交叉二聚。我们发现,配体衍生自P [N(CH 3)2 ] 3具有最佳的产品选择性。