Orthogonally functionalized naphthodithiophenes: selective protection and borylation

Autor: Naoyuki Yanai, Itaru Osaka, Ryusuke Sugimoto, Kazuo Takimiya, Eigo Miyazaki, Noriko Takemura, Tomoya Kashiki, Shoji Shinamura
Rok vydání: 2012
Předmět:
Zdroj: Organic letters. 14(18)
ISSN: 1523-7052
Popis: Selective functionalization protocols of naphtho[1,2-b;5,6-b′]dithiophene (NDT3) by combining protection of the thiophene α-positions and direct borylation on the naphthalene core are described, which allows synthesizing a number of new NDT3-based building blocks with various substituents and isomeric NDT3-based polymers with different main chain structures. The same protocol is applicable to other isomeric naphthodithiophenes (NDTs), which affords a set of key building blocks for the development of elaborated functional π-materials.
Databáze: OpenAIRE