<b>The Pyrolysis of 2-Phenyltetrahydro-1,2-oxazines as a Simple Preparative Entry to Cyclobutanes</b>
作者:C. E. Griffin、N. F. Hepfinger、B. L. Shapiro
DOI:10.1021/ja00900a049
日期:1963.9
Experimental Determination of the Heat of Hydrogenation of Phenylcyclobutadiene
作者:Alireza Fattahi、Lev Lis、Steven R. Kass
DOI:10.1021/ja0525511
日期:2005.9.1
The heat of hydrogenation of phenylcyclobutadiene (DeltaH degrees (hyd) = 57.4 +/- 4.9 kcal mol(-1)) was determined via a thermodynamic cycle by carrying out gas-phase measurements on 1-phenylcyclobuten-3-yl cation. This leads to an antiaromatic destabilization energy of 27 +/- 5 kcal mol(-1), a difference of 9.6 +/- 4.9 kcal mol(-1) for the first and second C-H bond dissociation energies of 1-phenylcyclobutene