Synthesis of highly polymerizable 1,3‐benzoxazine assisted by phenyl thio ether and hydroxyl moieties

A benzoxazine bearing thiol moiety 1 was synthesized from its precursor, a bifunctional benzoxazine bearing disulfide linkage, through selective reduction of the disulfide. The thiol moiety thus formed readily reacted with glycidyl phenyl ether to give the corresponding benzoxazine 3a, which exhibited much higher polymerization ability than some referential monomers without sulfide moiety. Additional Supporting Information may be found in the online version of this article. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.