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.
一种新的间环烷型大体积溴苯被转化为不对称取代的1,4-二磷-苯丁三烯,其自旋-自旋耦合常数(3Jpp)首次大于相应的1的2Jpp值, 3-二磷杂戊烯。