Synthesis of functionalized diazocines for application as building blocks in photo- and mechanoresponsive materials

• Widukind Moormann,
• Daniel Langbehn and
• Rainer Herges

Beilstein J. Org. Chem. 2019, 15, 727–732, doi:10.3762/bjoc.15.68

• molecular switches in photo and mechanoresponsive macromolecules and other smart materials. Keywords: bridged azobenzene; diazocine; mechanophor; oxidative C–C coupling; photochrome; reductive azo cyclization; Introduction The field of photoresponsive materials is of growing interest [1][2][3]. Several

• and 10b are formed, most probably through radical intermediates. Then the dinitro compounds 10a and 10b were reduced with Ba(OH)2/Zn to the hydrazine intermediates and subsequently oxidized with CuCl2 and air in a two-step reductive azo cyclization in a similar manner as described in [27]. After