29779-78-0Relevant articles and documents
Sterically Crowded Cyclohexanes, 3. 4,4,8,8,12,12-Hexamethyltrispirododecane and 4,4,8,8,9,9,10,10-Octamethyldispirodecane - Two Per(cyclo)alkylated Cyclohexanes Adopting a Twistboat Conformation
Fitjer, Lutz,Scheuermann, Hans-Joerg,Klages, Ulrich,Wehle, Detlef,Stephenson, David S.,Binsch, Gerhard
, p. 1144 - 1161 (2007/10/02)
Synthesis, conformation, and dynamics of the title compounds 1 and 8 are described. 1 and -1 were obtained by sequential methylenation and cyclopropanation of 9.The hydrogenation of 1 yielded not only 7 and 8 but also 21 and 22.On the contrary, the
Synthesis, Crystal and Molecular Structure of 1,1,3,3-Bis(1',1',5',5'-tetramethylpentamethylene)allene
Irngartinger, Hermann,Kurda, Ellen,Rodewald, Hans,Berndt, Armin,Bolze, Rudolf,Schlueter, Kasper
, p. 967 - 972 (2007/10/02)
The symmetrically substituted allene derivative 1,1,3,3-bis(1',1',5',5'-tetramethylpentamethylene)allene (4) crystallizes in the monoclinic space group P21/c with Z = 4 molecules in the unit cell.The deviation of 2.4 deg from the linear arrange