Tetraboryl derivatives of porphyrins in the synthesis of novel fluorenes

• Published in: Doklady. Chemistry Vol. 472; no. 1; pp. 7 - 10
• Main Authors: Vainer, A. Ya, Dyumaev, K. M., Kovalenko, A. M., Babushkin, Ya. L., Krichevskaya, S. A., Taritskaya, Sh. I.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 2017; Springer Nature B.V
• Subjects: Chemical synthesis; Chemistry; Chemistry and Materials Science; Chemistry/Food Science; Industrial Chemistry/Chemical Engineering
• ISSN: 0012-5008; 1608-3113
• DOI: 10.1134/S0012500817010037

A new strategy for the synthesis of fluorene-containing porphyrins by Suzuki–Miyaura reaction using a tetraboryl porphyrin derivative and a fluorene derivative of 4-bromoaniline has been proposed. A number of consecutive chemical transformations of the prepared porphyrin have led to formation of a polyphenol derivative of the above compound. Positive photoresists for lithography with exposing radiation wavelength of 13.5 nm have been developed on the basis of a similar polyphenol, which provided preparation of topological structures with a resolution of 22–16 nm.