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. 2011 Sep 30;133(44):17570–17573. doi: 10.1021/ja2072934

Figure 1.

Figure 1

(A) A generic [2 + 2 + 2] reaction between quadricyclane and a π electrophile to yield a norbornene cycloaddition product. (B) 7-Acetoxyquadricyclane (1) reacts with bis(dithiobenzil)nickel(II) (2) to form complex 3. Complex 3 undergoes photodegradation to 2 and 7-acetoxynorbornadiene (4) unless diethyldithiocarbamate (5) is present.