... Early studies during the 1970s and 1980s described the reaction of plain cyclooctyne with various 1,2-quinones in organic solvents.(29-31) It has also been shown that 1,2 ... We synthesized a bifunctional linker 12 (Figure 3c) containing both an azide and a catechol moiety. ...
[Tsukahara, Yuhko; Kinoshita, Hideki; Inomata, Katsuhiko; Kotake, Hiroshi Bulletin of the Chemical Society of Japan, 1984 , vol. 57, # 10 p. 3013 - 3014]