Heterocycles from Phosphonium−Iodonium Ylides. Photochemical Synthesis of λ<sup>5</sup>-Phosphinolines
作者:Elena D. Matveeva、Tatyana A. Podrugina、Anna S. Pavlova、Andrey V. Mironov、Anatoliy A. Borisenko、Rolf Gleiter、Nikolay S. Zefirov
DOI:10.1021/jo901984q
日期:2009.12.18
A photochemical reaction of mixed phosphonium−iodonium ylides with acetylenes yielding λ5-phosphinolines, a rare class of phosphorus heterocycles hardly accessible by other methods, was found. The yields of λ5-phosphinolines vary from 35% to 80%. The structures of two phosphinolines were established by single-crystal X-ray diffraction. The X-ray diffraction and NMR spectra data indicate the superposition