作者:Lakshminarasimhan Damodharan、Vasantha Pattabhi、Rallapalli Sivakumar、Sambasivarao Kotha
DOI:10.1107/s0108270103010825
日期:2003.7.15
e]pentalene-7',2"-furan]-5,5"-dione, C(20)H(26)O(4), and (3aR,3bR,4aR,4bS,5aS,8aR,8bR,9aR,9bS,10aS)-perhydrodipentaleno[2,1-a:2',1'-e]pentalene-1,6-dione, C(20)H(26)O(2), are intermediates identified during the synthesis of dodecahedrane. Crystallographic studies have established the ring-junction stereochemistry for these important intermediates. All the ring junctions are cis-fused, and the molecular
标题化合物,(2R,2“ S,3b'S,4a'R,7b'S,8a'R)-全氢双螺[呋喃-2,3'-二环戊[a,e]戊烯-7',2”-呋喃]- 5,5“ -dione,C(20)H(26)O(4)和(3aR,3bR,4aR,4bS,5aS,8aR,8bR,9aR,9bS,10aS)-全氢二戊烯[2,1-a :2',1'-e] pentalene-1,6-dione,C(20)H(26)O(2),是十二碳烯合成过程中鉴定的中间体,晶体学研究已为这些化合物建立了环结立体化学重要的中间体,所有环连接都是顺式稠合的,分子堆积通过范德华相互作用而稳定。