42843-49-2Relevant articles and documents
DIOLS AS EFFECTIVE COCATALYSTS IN THE PHASE TRANSFER CATALYZED PREPARATION OF 1-ALKYNES FROM 1,2-DIHALIDES
Dehmlow, Eckehard V.,Thieser, Rainer,Sasson, Yoel,Neumann, Ronny
, p. 3569 - 3574 (2007/10/02)
Bis-tertiary diols accelerate bis-eliminations of HX from 1,2-dihalides in the presence of an onium salt as phase transfer catalyst and potassium hydroxyde as base.PEG 400 catalyzes the same elimination, but isomerizations from 1-alkyne to mixtures with the 2-alkyne and the 1,2-diene occur easily.
POLY(STYRYLMETHYLTHIOL) AS AN EFFICIENT DEBROMINATING REAGENT OF 1,2-DIBROMIDES
Janout, Vaclav,Cefelin, Pavel
, p. 3913 - 3916 (2007/10/02)
Dibromides are readily debrominated by means of poly(styrylmethyl thiolate) with formation of the respective olefins.The polymeric reagent with a high content of sulphhydryl groups can be easily prepared from chloromethylated polystyrene; it extends possibilities of protection-deprotection reactions of the double bond.