104487-88-9Relevant academic research and scientific papers
Studies towards Functionalized/Annulated acs-Tetracyclo4,11.06,10>dodeca-2,7-diene Skeletons - X-ray Structural Analyses of a "face-to-face" Dibenzo Compound and a Tetraoxadihydropagodane
Sedelmeier, Gottfried,Fessner, Wolf-Dieter,Pinkos, Rolf,Grund, Clemens,Murty, Bulusu A. R. C.,et al.
, p. 3442 - 3472 (2007/10/02)
Hexacyclo2,6.03,10.04,8.09,12>dodecane-5,11-dione (15), which is efficiently available from 7-acetoxynorbornadiene (1) and tetrachlorocyclopentadienone dimethyl acetal, is the key substance for the synthesis of hexacyclo2,7.03,11.04,9.010,14>tetradeca-5,12-diene (24) as well as of various 5,12-functionalized acs-tetracyclo4,11.06,10>dodeca-2,7-dienes (32, 36, 40, 41), of some related 2,3-benzo- (84, 85) and "face-to-face" 2,3:7,8-dibenzo compounds (54 - 58), which are sought as photosubstrates.The two isomeric "face-to-face" dipyridazines 65/68 are obtained starting from a pagodane intermediate (60) via the tetraformyl derivative 63.X-ray structural analyses together with MM2 calculations for the dibenzo compound 54 and for the tetraoxadihydropagodane 64 (a peristylane) derived from 63, provide detailed structural informations.
