Use of 10 mol% camphorsulfonic acid in 5.0 M lithium perchlorate-diethyl ether to promote intramolecular Diels-Alder reactions of conformationally restricted substrates, wherein the substrates possess a terminal diene unit, gives rise to tandem diene migration - [4+2] cycloaddition.
在5.0 M
高氯酸锂-
乙醚中使用10 mol%
樟脑磺酸来促进构象受限的底物的分子内Diels-Alder反应,其中底物具有末端二烯单元,导致串联二烯迁移-[4 + 2]环加成。