Facile synthesis of luminescent benzo-1,2-dihydrophosphinines from a phosphaalkene
作者:Laura C. Pavelka、Kim M. Baines
DOI:10.1039/c2dt11690a
日期:——
The addition of 4-trifluoromethyl-1-ethynylbenzene, phenylacetylene, or 4-ethynylanisole to P-mesityldiphenylmethylenephosphine, 1, produced photoluminescent 1,2-dihydrophosphinines 4a–c, respectively, in quantitative yield via a [4 + 2] cycloaddition. Limited reactivity was observed between 1 and non-aromatic alkynes. P-[Bis(trimethylsilyl)amino][(trimethylsilyl)methylene]phosphine, 2, and P-mesi
除了4-三氟甲基-1-乙炔基苯, 苯乙炔, 或者 4-乙炔基苯甲醚 到 对苯二甲撑二苯基亚甲基膦,1,通过[4 + 2]环加成反应,分别以定量收率产生了光致发光的1,2-二氢膦亚胺4a-c。在1和非芳族炔烃之间观察到有限的反应性。对-[双(三甲基甲硅烷基)氨基] [(三甲基甲硅烷基)亚甲基]膦,2和对甲基[[叔丁基)(三甲基甲硅烷氧基)亚甲基]膦,3,显示与所有炔烃的反应非常有限。将磷烯烃对末端炔烃的反应性与烯烃以及硅烯和生殖烯的反应性进行了比较。