The reactions of the phosphorylallenes cyclodimerization and [2+2]-cycloaddition of amino-substituted phosphaalkenes to the allenylphosphonates were investigated. It is revealed that dimerization of 3,3-dimethylphosphorylallenes at 70-75 oC leads to the formation of a single adduct of cyclobutane structure regardless of the alkoxyl radical value. It was found that interaction of allene systems with phosphaalkenes realized under mild conditions by type [2 +2] cycloaddition to form two isomeric phosphetanes due to the addition of an alkene molecule both π 1,2, and so on π 2,3 bonds of the phosphorylallenes. It is shown that a diazaphosphole joined by 1,3-diene system of multiple bonds of the 1-vinyl-3,3-dimetilallenylphosphonate with the orientation of the central atom P II to sp-hybridized carbon atom of the allene.
циклоприсоединение, циклодимеризация, эфиры алленилфосфоновой кислоты, диазафосфол, спектроскопия, дифференциально-термический анализ, cycloaddition, cyclodimerization, esters of the allenylphosphonic acid, diazaphosphole, spectroscopy, differential thermal analysis
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