2-Polyfluoroacylcycloalkanones in reactions with selected phosphorus(III) compounds
作者:Dmitri V. Sevenard、Enno Lork、Kazimir I. Pashkevich、Gerd-Volker Röschenthaler
DOI:10.1002/hc.10001
日期:——
phosphoranes diastereospecifically, via addition of phosphorus at the trifluoroacetyl group and two additional heterocyclizations. Tris(trimethylsilyl)aminoiminophosphine formed very reactive trimethylsilylimino-1,2λ5σ4-phospholenes, which added hexafluoroacetone to give spirocyclic 1,3,2λ5σ5-oxazaphosphetanes. The structures of the new compounds were determined by NMR spectroscopy and X-ray single
已经研究了 2-多氟酰基环烷酮及其 O-甲硅烷基化衍生物对亚磷酸酯和三(三甲基甲硅烷基)氨基亚氨基膦的反应性。从由亚磷酸三(三甲基甲硅烷基)酯和 1,3-二酮生成的 α-多氟烷基取代的膦酸酯获得了相应的膦酸及其盐。在一种情况下,在加热时,膦酸经历闭环以产生氧杂磷烯。2-三氟乙酰环烷酮和二乙基异氰酸根合亚磷酸酯通过在三氟乙酰基上添加磷和两个额外的杂环化来非对映特异性地提供正膦。三(三甲基甲硅烷基)氨基亚氨基膦形成非常活泼的三甲基甲硅烷基亚氨基-1,2λ5σ4-磷烯,再加入六氟丙酮生成螺环 1,3,2λ5σ5-氧氮杂膦。新化合物的结构通过核磁共振光谱和X射线单晶分析确定。© 2002 Wiley Periodicals, Inc. 杂原子化学 13:97–107, 2002; 在线发表于 Wiley Interscience (www.interscience.wiley.com)。DOI 10