106975-88-6Relevant academic research and scientific papers
Thiophosphoramide-based cooperative catalysts for Bronsted acid promoted ionic diels-alder reactions
Borovika, Alina,Tang, Pui-In,Klapman, Seth,Nagorny, Pavel
, p. 13424 - 13428 (2013)
Three's a crowd: The combination of a Bronsted acid and a hydrogen-bond donor cocatalyst was found to promote various ionic [2+4] cycloadditions under mild reaction conditions (see scheme; Ts=4-toluenesulfonyl) . Thiophosphoramides are the most effective cocatalysts because of the stronger counterion activation effect resulting from three, rather than two, hydrogen bonds involved in anion binding.
Use of FeCl3 and FeCl3 adsorbed on silica as efficient Lewis acid catalyst in ionic Diels-Alder reactions of α,β-unsaturated acetals
Chavan, Subhash P.,Sharma, Anil K.
, p. 667 - 669 (2001)
The efficiency of FeCl3 adsorbed on silica, as conventional Lewis acid catalyst in Diels-Alder reaction of α,β-enals, enones including their acetals with 1,3-dienes is described.
