ABSTRACT

I. V. VAKULIN, R. F. TALIPOV, O. YU. KUPOVA, G. R. TALIPOVA, A. V. ALLAGULOVA, and R. R. FAIZULLINA

Abstract ................................................................................................... 92 9.1 Introduction .................................................................................... 92 9.2 Methods of Calculations ................................................................ 93 9.3 Calculation Results and Discussion ............................................... 94 9.4 Conclusion ..................................................................................... 99 Keywords ................................................................................................ 99 References ............................................................................................... 99

ABSTRACT

Addition of formaldehyde dimer to alkenes with in the gas phase by the Prins reaction are studied at the MP2(fc)/6-31G(d,p). It is shown that the initially complex obtained at the first study turn into 1,3-dioxane without intermediate formation of a σ-complex. Also shown, that transformation of π-cation is a pseudo synchronous process.