S. Ito, Kozo Toyota, M. Yoshifuji
Aug 5, 1995
Citations
0
Influential Citations
13
Citations
Journal
Chemistry Letters
Abstract
A sterically protected 1,4-diphospha-1,3-butadiene was prepared from the copper-mediated coupling reaction of 2,2-dichloro-1-(2,4,6-tri-t-butylphenyl)-1-phosphaethene. The X-ray crystallographic analysis shows that the molecule has a center of symmetry and that each of the bulky phenyl groups tilts almost perpendicularly to the diphosphabutadiene system serving as a good protecting group.