764-95-4Relevant articles and documents
Nucleophilic addition to acetylenes in superbasic catalytic systems: X. Catalytic effect of alkali metal hydroxides in the vinylation of 1-heptanol
Parshina,Oparina,Gorelova,Preiss,Henkelmann,Trofimov
, p. 940 - 945 (2001)
- The catalytic activity of alkali metal hydroxides in base-catalyzed addition of 1-heptanol to acetylene depends on the alkali metal nature and degree of hydration of its hydroxide. In a closed system, the catalytic activity of alkali metal hydroxides decreases in the series 2KOH·H2O > RbOH·H2O > CsOH·H2O > NaOH. The corresponding series for a flow system is as follows: RbOH·H2O > CsOH·H2O > 2KOH·H2O > NaON > KOH·H2O. The difference is explained by participation of the catalyst in side reactions with both 1-heptanol and acetylene. Addition of dimethyl sulfoxide to the catalytic system accelerates the vinylation process.
Nucleophilic addition to acetylenes in superbasic catalytic systems: XI. Transformations of alkali metal hydroxides during vinylation of 1-heptanol with acetylene under elevated pressure
Oparina,Parshina,Khil'ko,Gorelova,Preiss,Henkelmann,Trofimov
, p. 1553 - 1558 (2007/10/03)
Base-catalyzed addition of 1-heptanol to acetylene under elevated pressure of the latter is accompanied by side processes including formation of carboxylic acid salts (alkali metal heptanoates and acetates) with liberation of hydrogen and acetylene polyme
