2-Morpholinobuta-1,3-diene cycloadds to aromatic aldehydes, N-benzylideneaniline, and methyl vinyl ketone, to give oxan-4-ones, 4-morpholinotetrahydropyridines, and 4-acetyl-1-morpholinocyclohexene derivatives, respectively, with a high degree of diastereoselectivity.
                                    将2-Morpholinobuta-1,3-diene环加成到芳族醛,N-苄叉基
苯胺和甲基
乙烯基酮上,分别得到oxan-4-ones,4-morpholinotetrahydropyridines和4-acetyl-1-morpholinocyclohexene衍
生物。非对映选择性度。