the presence of two different bases, NaH and Et3N. The relative amounts of isomeric products, spiro and ansa were established quantitatively from the 31P NMR spectra of the reaction mixtures. The products were separated and characterized by elemental analysis, mass spectrometry, 1H and 31P NMR spectroscopy. Crystal structures of 2b, 3b, 2e and 2f have been characterized by X-ray crystallography. Although
摘要本文对环三
磷腈及其衍
生物N3P3Cl4R2 [R2 = Cl(1a); (OCH 2(CF 2)2 CH 2 O)(1b);(OCH2CH2CH2O)(1c);NHPh(1天);(OCH 2 CH 2 CH 2 NH)(1e)和NHBut(1f)]已经用1,3-
丙二醇进行了。在两种不同的碱(NaH和Et3N)存在下,化合物1a-f与THF溶液中的
1,3-丙二醇以1:1的摩尔比反应。根据反应混合物的31 P NMR光谱定量确定异构体产物螺和ansa的相对量。分离产物,并通过元素分析,质谱,1H和31P NMR光谱表征。2b,3b,2e和2f的晶体结构已通过X射线晶体学表征。