A tandem combination of ortho-quinone methide (o-QM) formation/Michael addition/asymmetric dearomatization, which is catalysed by an iron–salan complex in air with high enantioselectivity, provides an efficient method for spirocyclic (2H)-dihydrobenzofuran synthesis from 2-naphthols and phenols.
一种铁-萨兰络合物在空气中高对映选择性地催化的正醌甲烷(o-QM)形成/迈克尔加成/不对称去芳构化串联组合,为从2-萘酚和酚合成螺环式(2H)-二氢苯并呋喃提供了一种高效方法。