Development of a new sterically protecting auxiliary of the metacyclophane type and application to unsymmetrical diphosphene, 1,3-diphosphaallene, and 1,4-diphosphabutatrieneElectronic supplementary information (ESI) available: Physical data. See http://www.rsc.org/suppdata/cc/b2/b209666h/
作者:Kozo Toyota、Akitake Nakamura、Masaaki Yoshifuji
DOI:10.1039/b209666h
日期:2002.11.29
A new bulky bromobenzene of the metacyclophane type was converted to an unsymmetrically substituted 1,4-diphos-phabutatriene whose spin-spin coupling constant (3Jpp) turned out to be larger, for the first time, than the 2Jpp value of the corresponding 1,3-diphosphaallene.
Oxidation von 4-N.N-dimethylaminophenyl-1-phosphabutatrienen zu diphosphanen mit “Malachitgrün”-chromophoren
作者:G. Märkl、P. Kreitmeier、R. Daffner
DOI:10.1016/s0040-4039(00)61593-9
日期:1993.10
The 4-N.N-dimethylaminophenyl-1-phosphabutatrienes 5 and 9 are oxidized to give the diphosphanes with ''Malachitgreen ''substituents by dimerization of the corresponding phosphinyl radicals.