1996 carboxylic amides

carboxylic amides (acyclic compounds)P 0320

35 - 075(2E)-4-Methoxy-2,4-pentadienamides as New Dienes in the Diels-Alder Reaction. — 4-Methoxypentadienamides such as (III) and (XIV)are new electron-rich dienes in Diels-Alder reactions. (4 + 2) Cycloadditionreactions with dienophiles such as (IV), (VII), (X), and (XII) gives thecorresponding cycloadducts, whereas Diels-Alder reaction with electron- richdienophiles fail. — (BERNABEU, M. C.; CHINCHILLA, R.; NAJERA, C.;RODRIGUEZ, M. A.; Tetrahedron Lett. 37 (1996) 20, 3595-3598; Dep. Quim.Org., Univ. Alicante, E-03080 Alicante, Spain; EN)

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