Domino C–H functionalization reactions of gem-dibromoolefins: synthesis of N-fused benzo[c]carbazoles
作者:Richard Y. Huang、Patrick T. Franke、Norman Nicolaus、Mark Lautens
DOI:10.1016/j.tet.2013.01.001
日期:2013.6
A palladium-catalyzed domino transformation of gem-dibromoolefins leading to novel polycyclic benzo[c]carbazoles is described. A unique feature of the current reaction is the participation of both bromides in C–H functionalization processes. Mechanistic studies were conducted to ascertain the sequence of reaction events, and the results indicate that the (Z)-bromide likely reacts in preference to the
描述了钯-催化的宝石-二溴烯烃的多米诺转化,其导致了新型的多环苯并[ c ]咔唑。当前反应的一个独特特征是两种溴化物都参与了CH的H官能化过程。进行了机理研究以确定反应事件的顺序,结果表明(Z)-溴化物可能优先于(E)-溴化物反应。
Construction of Cyclopenta[<i>b</i>]indol-1-ones by a Tandem Gold(I)-Catalyzed Rearrangement/Nazarov Reaction and Application to the Synthesis of Bruceolline H
作者:Dina Scarpi、Martina Petrović、Béla Fiser、Enrique Gómez-Bengoa、Ernesto G. Occhiato
DOI:10.1021/acs.orglett.6b01990
日期:2016.8.5
A tandemgold(I)-catalyzed rearrangement/Nazarov reaction of enynyl acetates which efficiently provides cyclopenta[b]indol-1-ones as useful precursors for the synthesis of natural and bioactive compounds is described. The synthetic potential of the methodology is demonstrated by the first total synthesis of bruceolline H.
描述了串联的金(I)催化的乙酸烯丙酯的重排/纳扎罗夫反应,其有效提供环戊[ b ]吲哚-1-酮作为有用的前体,用于合成天然和生物活性化合物。该方法的合成潜力通过首次合并布鲁索醇H来证明。
PhI(OAc)<sub>2</sub>/NaX-mediated halogenation providing access to valuable synthons 3-haloindole derivatives
diacetate mediated method for selective chlorination, bromination, and iodination of indole C–H bonds using sodium halide as a source for analogous halogenations. The combination of NaX and phenyliodine diacetate provides an invincible system for halogenation of indoles. This protocol was compatible with a wide array of indole substrates and provides straight forward access to potential halogenated arenes
The present invention provides compounds, pharmaceutical compositions, methods of inhibiting RORγ activity and/or reducing the amount of IL-17 in a subject, and methods of treating various medical disorders using such compounds and pharmaceutical compositions.
Cu-Catalyzed Synthesis of Tryptanthrin Derivatives from Substituted Indoles
作者:Chen Wang、Lianpeng Zhang、Anni Ren、Ping Lu、Yanguang Wang
DOI:10.1021/ol401144m
日期:2013.6.21
A concise method for the preparation of tryptanthrins fromindoles via the copper-catalyzed aerobic oxidation is described. The reactions can be carried out under mild reaction conditions with varying functional group tolerance.