Je. Kerrigan et al., DIASTEREOFACIAL SELECTIVITY IN THE DIELS-ALDER REACTION OF 2,3-DIALKOXY-1,3-BUTADIENES, Tetrahedron letters, 34(50), 1993, pp. 8055-8058
Facial selectivity in the Diels-Alder reaction of 2.3-dialkoxy dienes
with an allylic alcohol stereocenter was studied using three dienophil
es: N-phenylmaleimide (NPM), benzoquinone and 4-phenyl-1,2,4-triazolin
e-3,5-dione (PTAD).