METHOD OF SYNTHESIS OF SIMPLE PROPARGYL ETHERS Russian patent published in 1994 - IPC

FIELD: chemical technology. SUBSTANCE: reagent 1: corresponding cis-γ-chloroallyl ether. Reaction conditions: reagent 1 is dehalogenated under conditions of interphase catalysis and aqueous solution of NaOH at 60-80 C in the presence of catalytic system consisting of the quaternary ammonium salt of the general formula: R₁R₂R₃R₄N⁺X^- where X - Cl, Br where R₁R₂ - C₁-C₄-alkyl; R₃ - C₁-C₁₈-alkyl; R₄ - C₁-C₄-alkyl, allyl, benzyl and lower alkenyl or benzyl alcohol which can be substituted with halogen at mass ratio ammonium salt:alcohol = 1:(1-5). Method is used in chemical industry. EFFECT: improved method of synthesis of propargyl ethers. 1 tbl