Synthesis, thermal and light absorption properties of push-pull azochromophores substituted with dendronizing phenyl and perfluorophenyl fragments
Titel:
Synthesis, thermal and light absorption properties of push-pull azochromophores substituted with dendronizing phenyl and perfluorophenyl fragments
Auteur:
Laipniece, Lauma Kampars, Valdis
Verschenen in:
Main group chemistry
Paginering:
Jaargang 14 (2014) nr. 1 pagina's 43-58
Jaar:
2014-12-05
Inhoud:
4′-[N-(2-Hydroxyethyl)-N-methylamino]-2-(2-hydroxyethoxy)-4-nitroaz obenzene (1) has been synthesized in azo coupling reaction. Nine different analogues of 1 has been prepared symmetrically and alternately substituted with dendritic phenyl and perfluorophenyl moieties using standard methods for ester and ether bond formation and azo coupling reaction. Thermal and light absorption properties of the azochromophores have been examined. The effect of trityl, tetrahydropyranyl, hydroxyl, pentafluorophenyloxy and 2,3,4,5,6-pentafluorobenzyl propionate moieties on glass transition, melting point and thermal stability has been proposed.
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