A <i>m</i>-Benzyne to <i>o</i>-Benzyne Conversion through a 1,2-Shift of a Phenyl Group
作者:Michael E. Blake、Kevin L. Bartlett、Maitland Jones
DOI:10.1021/ja0213672
日期:2003.5.1
Pyrolysis of two differently labeled versions of 3-phenylphthalic anhydride shows that a m-benzyne can form the related o-benzyne through shift of a phenyl group. The highest energy point in the process is the transition structure for a reverse carbon-hydrogen insertion in an intermediate benzopentalene. With the minor addition of an intermediate alkyne formed through a Roger Brown rearrangement, the original mechanism for formation of acenaphthalene accommodates the labeling results.
BROWN, R. F. C.;EASTWOOD, F. W.;KISSLER, B. E., TETRAHEDRON LETT., 29,(1988) N 52, C. 6861-6864
作者:BROWN, R. F. C.、EASTWOOD, F. W.、KISSLER, B. E.
DOI:——
日期:——
Benzenoid ring contractions in the thermal automerization of acenaphthylene