On October 17, 2002, Li, Quan; Rukavishnikov, Aleksey V.; Petukhov, Pavel A.; Zaikova, Tatiana O.; Keana, John F. W. published an article.Category: iodides-buliding-blocks The title of the article was Nanoscale 1,3,5,7-Tetrasubstituted Adamantanes and p-Substituted Tetraphenyl-methanes for AFM Applications. And the article contained the following:
Tetrahedrally shaped mols.such as I based on tetrasubstituted methane or tetrasubstituted adamantane cores are prepared as potential precursors for single-mol. AFM tips. 1,3,5,7-Tetra(4-iodophenyl)adamantane is prepared in two steps from 1-bromoadamantane and benzene by heating with tert-Bu bromide and aluminum chloride followed by electrophilic iodination; the corresponding tetra(4-iodophenyl)methane is prepared from 4-tritylaniline by diazotization and substitution with iodide followed by electrophilic iodination. N-alkynylaryldithiazepane building blocks are prepared from 4-iodoaniline by addition of ethylene oxide, chlorination of the 2-hydroxyethylamino substituents, conversion via the bisthiocyanate to the dithiazepane, Sonogashira coupling reaction of the aryl iodide moiety with trimethylsilylacetylene and desilylation, coupling with 4-iodophenylethynyltrimethylsilane, and desilylation to provide the arms of I in seven steps. Sonogashira coupling of tetra(4-iodophenyl)methane with the arm unit yields I. AFM images of I indicate that I can be imaged with a conventional AFM tip. The experimental process involved the reaction of 1,3,5,7-Tetrakis(4-iodophenyl)adamantane(cas: 144970-30-9).Category: iodides-buliding-blocks
The Article related to tetrahedral arylalkyne preparation single mol afm probe tip, iodophenylmethane iodophenyladamantane preparation, sonogashira coupling reaction alkynylarylazadithiepine, afm imaging azathiepinylethynylphenylethynylphenylmethane and other aspects.Category: iodides-buliding-blocks
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com