作者:O. Awerbouch、Y. Kashman
DOI:10.1016/0040-4020(75)80008-1
日期:1975.1
Several new 8-phosphabicyclo[3.2.1]oct-6-enes and -6-en-3-yl acetates were prepared by the alkyl (or aryl)dihalophosphane addition to cyclohepta -1,3-diene and 1-acetoxy cyclohepta-3,5-diene. The P-configuration in two P-epimer pairs (3, 4 and 5, 6) and three other compounds which were each obtained as a single isomer (1, 2 and 7) was determined by investigation of the NMR spectra, i.e. by complexation
通过将烷基(或芳基)二卤代膦加到环庚-1,3-二烯和1-乙酰氧基环庚-中,制得几种新的8-磷杂双环[3.2.1]辛-6-烯和-6-en-3-基乙酸酯。 3,5-二烯。在两个P-差向异构体对(P型结构3,4和5,6),并且分别获得为单一异构体(3个其它化合物1,2和7)是由NMR谱的调查,即,由络合确定化合物与Eu(dpm)3以及各种磷-氢偶联常数的关系 具有相同P取代基的化合物相互之间以及在带有PPh的化合物之间是相关的(参照图1和7)建立了与已知化合物(8a)的进一步的相关性。的C的化学行为6 C 7双键讨论和比较与TROP-6 -烯对应的行为。发现该键存在很大的空间位阻,建议采用以下顺序: