Synthesis and Some Transformations of Cyclic Acetals of Propargyl Aldehyde
Dehydrobromination of 2-(1,2-dibromoethyl)-1,3-dioxocyclanes with sodium amide in liquid ammonia provided cyclic acetals of propargyl aldehyde. Reactions of the resulting compounds with nitrile oxides and diazomethane afforded the corresponding isoxazole and pyrazole derivatives.
Lukicheva,Golovanov,Nachkebia, Ya. A.,Bekin,Raskildina,Zlotskii
p. 330 - 333
(2018/03/26)
NMR Study of Conformations of 2-Ethynyl-1,3-dioxanes as Influenced by the Phase State (Gas, Solution, or Solid Phase)
The effect of the phase state and solvent on conformational composition and thermodynamic parameters (free energies and enthalpies) of the conformational transitions in 2-ethynyl-1,3-dioxanes were studied by dynamic NMR spectroscopy. The characteristics o