Cyclotribromoveratrylene in synthesis of porphyrin-containing polyphenols

Abstract

In this work we described a method of synthesis of porphyrin-containing polyphenols. These compounds were chemically combined with the molecular platform which based on cyclotriveratrylene core. The targeted ring system was synthesized through a palladium-catalyzed Suzuki-Miyaura coupling, with cyclotribromoveratrylene and 4-(4′,4′,5′,5′-tetramethyl-1′,3′,2′-dioxaborolan-2′-yl)-N,N-diporphyrinaniline as a key intermediates. The subsequent chemical transformations of a mentioned system were made for formation of targeted ring compound with free phenolic groups. These functional moieties were partially protected with acid-labile groups. Additionally, the using of porphyrin-containing polyphenols for chemically amplified positive photoresists could produce topological structures with 16 nm resolution on exposure by 13,5 nm wavelength of light.