Design and Synthesis of a New Class of Nonmacrocyclic Alkali Metal Host Compounds
作者:Glenn J. McGarvey、Marshall W. Stepanian、Andrew R. Bressette、Michal Sabat
DOI:10.1021/ol006468o
日期:2000.11.1
A newclass of nonmacrocyclic metal ion hosts has been examined that features a polyspirocyclic framework that offers a 1,3,5-triaxial presentation of ligating centers. These compounds are easily synthesized and exploit stereoelectronic influences to preorganize the metal ion binding site. While compounds bearing oxygen substituents (X = OH, OMe) failed to show appreciable binding of alkali metals
Synthesis of trans- and cis-14-phenylsulfonyl-1,7,9-trioxadispiro[5.1.5.3]hexadecane
作者:Margaret A. Brimble、Carolyn J. Rush
DOI:10.1039/p19940000497
日期:——
The synthesis of the trans- and cis-isomers 1a and 1b of 14-phenylsulfonyl-1,7,9-trioxadispiro-[5.1.5.3]hexadecane via the addition of an alpha-sulfonyl carbanion to delta-valerolactone followed by acid-catalysed cyclization is described. Reductive removal of the sulfone group using Raney nickel afforded the parent bis-spiroacetals 9a and 9b together with the spiroacetal alcohol 10 which underwent oxidative cyclization to the parent bis-spiroacetals 9a and 9b upon treatment with iodobenzene diacetate and iodine.
Brimble, Margaret A.; Rush, Carolyn J.; Williams, Geoffrey M., Journal of the Chemical Society. Perkin transactions I, 1990, # 2, p. 414 - 416
作者:Brimble, Margaret A.、Rush, Carolyn J.、Williams, Geoffrey M.、Baker, Edward N.