多米诺骨牌Aza-Piancatelli重排/分子内Diels-Alder反应:Octahydro-1 H -cyclopenta [ cd ]异吲哚的立体选择性合成
摘要:
首次以高度立体选择性的方式开发了一种有效的单锅法,用于构建有角度融合的5-6-5氮杂三环骨架。该多米诺反应是氮杂-Piancatelli重排和分子内Diels-Alder反应的新颖组合,可轻松提供六氢-2a,5-环氧-环戊[ cd ]异吲哚加合物,带有六个连续的立体中心,且收率很高。BBr 3介导的氧杂桥联加合物的裂解导致八氢-1 H-环戊[ cd ]异吲哚的形成,这是gracilamine生物碱的氮杂-三环BCE核心。
多米诺骨牌Aza-Piancatelli重排/分子内Diels-Alder反应:Octahydro-1 H -cyclopenta [ cd ]异吲哚的立体选择性合成
摘要:
首次以高度立体选择性的方式开发了一种有效的单锅法,用于构建有角度融合的5-6-5氮杂三环骨架。该多米诺反应是氮杂-Piancatelli重排和分子内Diels-Alder反应的新颖组合,可轻松提供六氢-2a,5-环氧-环戊[ cd ]异吲哚加合物,带有六个连续的立体中心,且收率很高。BBr 3介导的氧杂桥联加合物的裂解导致八氢-1 H-环戊[ cd ]异吲哚的形成,这是gracilamine生物碱的氮杂-三环BCE核心。
General cross-coupling reactions with adaptive dynamic homogeneous catalysis
作者:Indrajit Ghosh、Nikita Shlapakov、Tobias A. Karl、Jonas Düker、Maksim Nikitin、Julia V. Burykina、Valentine P. Ananikov、Burkhard König
DOI:10.1038/s41586-023-06087-4
日期:——
(AD-HoC) with nickel under visible-light-driven redox reaction conditions for general C(sp2)–(hetero)atom coupling reactions. The self-adjustive nature of the catalytic system allowed the simple classification of dozens of various classes of nucleophiles in cross-coupling reactions. This is synthetically demonstrated in nine different bond-forming reactions (in this case, C(sp2)–S, Se, N, P, B, O, C(sp3, sp2
A Domino Aza-Piancatelli Rearrangement/Intramolecular Diels–Alder Reaction: Stereoselective Synthesis of Octahydro-1<i>H</i>-cyclopenta[<i>cd</i>]isoindole
an efficient one-pot method for the construction of an angularly fused 5–6–5 aza-tricyclic framework has been developed in a highly stereoselective manner. This domino reaction is a novel combination of aza-Piancatelli rearrangement and intramolecular Diels–Alderreaction, which readily furnishes hexahydro-2a,5-epoxy-cyclopenta[cd]isoindole adducts, bearing six contiguous stereogenic centers in very
首次以高度立体选择性的方式开发了一种有效的单锅法,用于构建有角度融合的5-6-5氮杂三环骨架。该多米诺反应是氮杂-Piancatelli重排和分子内Diels-Alder反应的新颖组合,可轻松提供六氢-2a,5-环氧-环戊[ cd ]异吲哚加合物,带有六个连续的立体中心,且收率很高。BBr 3介导的氧杂桥联加合物的裂解导致八氢-1 H-环戊[ cd ]异吲哚的形成,这是gracilamine生物碱的氮杂-三环BCE核心。