Synthesis and properties of novel silyl-substituted cyclobutadienes and tetrahedranes.
In: Chemische Berichte (Chem.Ber.), Jg. 127 (1994) ; Nr. 1, S. 191-200
Zeitschriftenaufsatz / Fach: Chemie
Cyclobutadienes as well as the corresponding tetrahedranes were prepd. according to the Masamune route by starting from diazo compds. Low-temp. 13C-NMR measurements of the cyclobutadienes lead to the 1st exact values of the barrier heights in the interconversion of the two rectangular forms of the cyclobutadienes.