TY JOUR TI A THEORETICAL STUDY OF THE REACTION MECHANISM OF PROPARGYL CHLORIDE WITH B-MERCAPTOYETHANOL IN THE HYDRAZINE-HYDRATE-KOH SYSTEM KW reaction mechanisms KW nucleophilic substitution KW acetylene-allene allylic rearrangement KW electron density functional theory KW B3LYP KW CCSD(T) JO Modern Technologies and Scientific and Technological Progress AU Chirkina, E.A. PY 2026 IS 2026 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»