Unsaturated eight-membered ring compounds. X. 1,2,3,4,7-cyclooctapentaene, a possible intermediate in the conversion of cis,cis-3,5-octadiene-1,7-diyne to benzocyclobutadiene dimer
作者:G. H. Mitchell、Franz Sondheimer
DOI:10.1021/ja01054a055
日期:1969.12
Condensed Cyclobutane Aromatic Compounds. VII. Diels-Alder Adducts of Benzocyclobutadiene
作者:M. P. Cava、M. J. Mitchell
DOI:10.1021/ja01529a039
日期:1959.10
TROST, B. M.;MASUYAMA, YOSHIRO, ISRAEL J. CHEM., 1984, 24, N 2, 134-143
作者:TROST, B. M.、MASUYAMA, YOSHIRO
DOI:——
日期:——
Rotational correlation times and radii of dithiazol-2-yl and dithiazolidin-2-yl free radicals
作者:Shirley A. Fairhurst、Roger S. Pilkington、Leslie H. Sutcliffe
DOI:10.1039/f19837900439
日期:——
2-dithiazolidin-2-yl radicals have been shown to be useful model compounds for detailed e.s.r. studies of rotational reorientation in liquid and frozen media. Consequently they are also potentially useful spin probes and spin labels. The e.s.r. powder spectra have been analysed and the resulting g and A tensors were used to calculate rotational diffusion correslation times, rotational energetics of activation
A mild alternative to the use of benzyne in [4+2]-cycloaddition reactions
作者:Sergio Cossu、Ottorino De Lucchi
DOI:10.1016/0040-4020(96)00877-0
日期:1996.11
A synthetic protocol to assemble a benzene ring, mimicking the [4+2]-cycloaddition of benzyne is reported. The sequence of reactions is made up of simple and mild steps and overall it furnishes comparable or even better yields with respect to the direct addition of benzyne.