Yijun Shi, Jingyang Jiang, Jianzhi Wang
Dec 2, 2015
Citations
0
Influential Citations
7
Citations
Journal
Tetrahedron Letters
Abstract
Abstract 4,4′-Spirobi[pentacyclo[5.4.0.0 2,6 .0 3,10 .0 5,9 ]undecane] ( 10 ) is first successfully prepared by a nine step synthetic scheme starting from the key intermediate (cyclopentadiene derivate, 2 ). This synthetic scheme avoids using the hardly obtainable spiro[4.4]nonatetraene ( 18 ) as the starting material. In the structure of 10 , two polycyclic cages share one spiro-carbon so that it has high density (1.2663 g/cm 3 ) and high volumetric heat of combustion (53.353 MJ/L).