27 research outputs found
De intramoleculaire Diels-Alderreactie met furandieen en alleendiënofiel : een nieuwe benadering voor totaalsynthese van («)-Periplanon-B
No full textA novel approach to periplanone-B involving an intramolecular diels-alder reaction with furan-diene and allene-dienophile
No full textTotal synthesis of natural products via intramolecular diels-alder reaction with furan-diene and allene-dienophile
No full textFactors affecting ease of ring formation. The effect of anchoring substitution on the rate of an intramolecular diels-alder reaction with furan-diene
No full textFactors affecting ease of ring formation. The effect of anchoring substitution on the rate of an intramolecular diels-alder reaction with furan-diene
No full textKinetic parameters for the IMDAF reaction of 2 and 3 were determined. For the equilibrium between 2b and 4b: ΔH° = -29.3 kJ/mol, ΔS° = -75 J/mol.K; for the conversion of 3 into 6 a significant rate enhancement by the anchoring tert-butyl group is observed: k(3b)/k(3a) = 240. The structure of 6b was proven via X-ray determination of 8. © 1988
Diophante d'Alexandrie ou les premiers pas de l'alg(bre chezles Grecs
No full textSIGLEBSE B223829W / UCL - Université Catholique de LouvainBEBelgiu
RATE ACCELERATION OF THE INTRAMOLECULAR DIELS-ALDER REACTION WITH FURAN-DIENE BY ANCHORING SUBSTITUTION : THE T-BUTYL EFFECT REVISITED
No full textThe effect of anchoring substitution on the course of a cation olefin bicyclization. Crystal structure of (±)-(2R, 3′R,5′S)-2-(3′-tert-Butyl-5-Isopropl-5′-Methyl-1′-Cyclopentenyl)-1-Cyclopentanone
No full text
