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全碳链的亲双烯与共轭双烯的Diels-Alder反应的立体化学与反应机理已得到较系统的研究.对于最普通的含氮亲双烯Schiff碱在[4+2]环加成反应中,反应活性很低,只有缺电子亚胺化合物具有较强的反应活性,但需要强Lewis酸作用下才能完成环加成反应.1986年
The stereochemistry and reaction mechanism of Diels-Alder reaction of all-carbon chain dien-dienyl and conjugated diene have been systematically studied. For the most common nitrogen-containing dienophile Schiff base in the [4 + 2] cycloaddition reaction , The reaction activity is very low, only the lack of electron imine compounds with strong reactivity, but the need for strong Lewis acid to complete the cycloaddition reaction.