申请人:San Diego State University Foundation
公开号:US20020115860A1
公开(公告)日:2002-08-22
Compositions and methods are described for hydrating terminal alkynes catalytically in anti-Markovnikov fashion. The compositions comprise a transition metal complex including at least one organic ligand having at least two heteroatoms, wherein the heteroatoms are directly bonded or located one atom away. Preferably, at least one of the heteroatoms is nitrogen, which is typically provided as part of a heterocyclic ring. Other preferred heteroatoms include S, P, N, As or Se. A particularly preferred catalyst employs a P-linked imidazole ligand bound to Ru. Such complexes have a controlled adaptable proton transfer ability and/or a hydrogen bonding ability making them particularly useful as chemical reaction facilitators.
描述了一种以反马可夫尼科夫方式催化水合末端炔烃的组合物和方法。这些组合物包括至少一个有至少两个杂原子的有机配体的过渡金属配合物,其中这些杂原子直接键合或位于一个原子之外。最好的情况是,这些杂原子中至少有一个是氮,通常作为杂环的一部分提供。其他首选的杂原子包括硫、磷、氮、砷或硒。一种特别首选的催化剂使用与钌结合的P-链咪唑配体。这种复合物具有可控的适应性质子转移能力和/或氢键能力,使它们特别适用于化学反应促进剂。