100696-16-0Relevant academic research and scientific papers
DIELS-ALDER VERSUS HETERODIENE IN THE REACTION BETWEEN 4-ARYLIDENE-5-PYRAZOLONES AND 2,3-DIMETHYLBUTADIENE: THE EFFECT OF ACID CATALYSIS
Brugnolotti, M.,Coda, A. Corsico,Desimoni, G.,Faita, G.,Invernizzi, A. Gamba,et al.
, p. 5229 - 5242 (2007/10/02)
The thermal reaction between (E) or (Z)-pyrazolones (1) and 2,3-dimethylbutadiene (2) gave 1,2-dimethyl-5-arylcyclohexen-4-spiro-4'(1'-phenyl-3'-substituted-5'-pyrazolones) (3, 4), from a Diels-Alder reaction, and 4-aryl-2-isopropenyl-2-methyl-5-substitut
DIELS-ALDER VERSUS HETERODIENE REACTION: THE EFFECT OF ACID CATALYSIS.
Coda, A. Corsico,Desimoni, G.,Invernizzi, A. Gamba,Righetti, P. P.,Tacconi, G.
, p. 3137 - 3140 (2007/10/02)
The difference between thermal, AlCl3- and CF3COOH-catalyzed reaction of (E)-4-benzal-1-phenyl-5-pyrazolone and 2,3-dimethylbutadiene is discussed in terms of Diels-Alder versus heterodiene reactivity.
