79427-81-9Relevant articles and documents
INTERCYCLIC ?2+?2+?2>-AND ?2+?2>-CYCLOADDITION REACTIONS IN STERICALLY FIXED NORBORNADIENE-/QUADRICYCLANE-SYSTEMS
Prinzbach, Horst,Weidmann, Klaus,Trah, Stephan,Knothe, Lothar
, p. 2541 - 2544 (1981)
The stereoelectronic prerequisites for unusual "zippper-type" ?2+?2+?2>- and ?2+?2>-reaction sequences, e.g. in the still unknown C7H6-pentamers (1)/(2), are being studied using model compounds with
The Chemistry of Biquadricyclanylidene. Inter- and Intramolecular ?2 + ?2 + ?2>-Cycloaddition Reactions
Lehr, Karl-Heinz,Werp, Juergen,Bingmann, Horst,Krueger, Carl,Prinzbach, Horst
, p. 1835 - 1856 (2007/10/02)
The value of biquadricyclanylidene 6 for the synthesis of polychromophoric frameworks of the type 1 - 5 through ?2 + ?2 + ?2>-cycloaddition of bishomodienophilic partners is elucidated.Thus, dimethyl acetylenedicarboxylat