Medium-sized and strained heterocycles from non-catalysed and gold-catalysed conversions of β-carbolines
作者:Sandra Medina、Álvaro González-Gómez、Gema Domínguez、Javier Pérez-Castells
DOI:10.1039/c2ob25755f
日期:——
2-Allyl-1-vinyl-β-carbolines and dihydropyrrolo-β-carbolines react with activated internal alkynes through novel rearrangement reactions leading to complex polycyclic structures. Favored reaction pathways depend on reaction conditions and on the presence of gold catalysts. In particular, upon reaction with 2 equiv. of the alkyne, new hexacyclic structures 10 are formed with total stereocontrol.
2 烯丙基-1-乙烯基-δ-羰基化合物和二氢吡咯-δ-羰基化合物通过新型重排反应与活化的内炔发生反应,生成复杂的多环结构。有利的反应途径取决于反应条件和金催化剂的存在。特别是在与 2 等量的炔烃反应时,会形成新的六环结构 10,并具有完全的立体控制能力。