This invention relates to novel crown ether compositions which have been given the cognomen "lariat ethers". They have been designed with one or more arms bearing neutral donor groups capable of interacting with a complexed metal ion and thereby affording enhanced cation binding compared to simple crown ethers. Evidence of enhanced cation binding has been obtained and the compounds have also shown utility as phase transfer catalysts.
本发明涉及新型
冠醚组合物,被称为“套索醚”。它们被设计成具有一个或多个带有中性给体基团的臂,能够与络合
金属离子相互作用,从而提供与简单的
冠醚相比增强的阳离子结合能力。已经获得了增强的阳离子结合证据,并且这些化合物也显示出作为相转移催化剂的效用。