62316-22-7Relevant academic research and scientific papers
Recyclable organotungsten Lewis acid and microwave assisted Diels-Alder reactions in water and in ionic liquids
Chen, I-Hon,Young, Jun-Nan,Yu, Shuchun Joyce
, p. 11903 - 11909 (2004)
The water-soluble, organotungsten Lewis acid, [OP(2-py)3W(CO) (NO)2](BF4)2 (1), was synthesized and characterized. A series of 1-catalyzed Diels-Alder reactions were investigated under conventional heating or microwave heating conditions. The cycloaddition reactions were efficiently conducted in either water or in an ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate. The ionic liquid acts as a powerful medium not only for rate- and selectivity enhancements but also for facilitating catalyst recycling. Dramatic rate acceleration via microwave flash heating as compared to thermal heating was observed. Graphical Abstract
CATALYSIS OF HOMO DIELS-ALDER REACTIONS BY YB(FOD)3
Danishefsky, Samuel,Bednarski, Mark
, p. 2507 - 2508 (2007/10/02)
The use of Yb(fod)3 to catalyze Diels-Alder reactions of acrolein with sensitive dienes in nearly stoichiometric ratio and with high stereoselectivity is described.
