2-difunctionalization reaction of indolenines with α-(benzothiazol-2-ylsulfonyl) carbonyl compounds was developed. By employing the strategy of Brønsted acid-assisted chiral phosphoric acid catalysis, the Mannich addition/Smiles rearrangement cascade occurred smoothly and provided a new family of optically active 1,2-difunctionalized 2-substituted indolines in good yields and enantioselectivities.
建立了
吲哚与α-(
苯并噻唑-2-基磺酰基)羰基化合物的新型催化不对称1,2-双官能团反应。通过采用布朗斯台德酸辅助手性
磷酸催化的策略,曼尼希加成/微笑重排级联反应顺利进行,并以高收率和对映选择性提供了新的光学活性的1,2-双官能化2-取代的二氢
吲哚。