appropriate choice of electrophiles, one-pot, multicomponent, enantioselective domino reactions have been realized which contain a five-step sequence and provide highly efficient access to potentially bioactive chroman-2-one derivatives as a single diastereoisomer with excellent enantioselectivities and in high yields. This new strategy could significantly improve the previous protocol by directly starting
                                    基于亲电,一锅煮,多组分,对映选择性多米诺反应已经实现,其含有通过五个步骤顺序,并提供高效的访问潜在的
生物活性苯并二氢
吡喃-2-酮衍
生物作为具有优异的对映选择性,并在单个非对映体的合适的选择高产。通过直接从商业2-羟基
苯甲醛而不是预先形成的
乳糖醇开始,这种新策略可以显着改善以前的方案,而后者必须在几个额外的步骤中进行合成。