Accession Number : ADA119655

Title :   Macrocycles Containing Tin. Two Syntheses of 1,1,6,6,11,11,16,16-Octaphenyl-1,6,11,16-Tetrastannacycloeicosane and a Synthesis of 1,1,6,6-Tetraphenyl-1,6-Distannacyclodecane.

Descriptive Note : Technical rept.,

Corporate Author : TEXAS A AND M UNIV COLLEGE STATION DEPT OF CHEMISTRY

Personal Author(s) : Newcomb,Martin ; Azuma,Yutaka ; Courtney,Arleen R

PDF Url : ADA119655

Report Date : 22 Sep 1982

Pagination or Media Count : 12

Abstract : Synthetic techniques and methods for analysis and purification of macrocycles containing tin atoms are exemplified by the title syntheses. Highlights of the syntheses include a highly selective conversion of 1,4-bis-(triphenylstannyl)butane to 1,4-bis-(bromodiphenylstannyl)butane and a two component macrocyclization which proceeds in 43% yield to give the 20-membered ring product. Analytical HPLC and preparative chromatography methods for characterization and purification of the macrocycles and their synthetic intermediates and analogs are described. Other syntheses which show the generality of the methods are discussed. (Author)

Descriptors :   *Synthesis(Chemistry), *Tin compounds, *Stannates, Substitutes, Decanes, Purification, Phenyl radicals, Cyclic compounds, Butanes, Bromine, Conversion, Chromatography, Molecular weight, Anions, Cations, Ethers

Subject Categories : Organic Chemistry
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE