905978-05-4Relevant articles and documents
Diels-alder reactivity of binuclear complexes with calixarene-like structures
Kaess, Steffen,Gregor, Thomas,Kersting, Berthold
, p. 101 - 104 (2006)
The regioselectivity of the Diels-Alder reaction between ω-substituted dienoates and unsymmetrical dienophiles can be strictly controlled by "calixarene-like" metal complexes of type A (see scheme). The reaction of the dienoate coligand in A with acrylonitrile leads to the exclusive formation of the regioisomer adduct I, which is in striking contrast to the low regioselectivity of the background reaction. (Chemical Equation Presented).
Synthesis of chiral acetals by asymmetric selenenylations
Uehlin, Lars,Wirth, Thomas
experimental part, p. 1374 - 1385 (2010/03/03)
Asymmetric selenenylations of (E)-ethoxystyrene are described leading to chiral acetals. An efficient synthesis of such compounds including the determination of their absolute configuration is described.