Silane, (1,1-dimethylethyl)dimethyl((4-(4-propyl-2,6,7-trioxabicyclo(2.2.2)oct-1-yl)phenyl)ethynyl)-

tert-Butyl(dimethyl){[4-(4-propyl-2,6,7-trioxabicyclo[2.2.2]octan-1-yl)phenyl]ethynyl}silane