Access to 3a-Benzoylmethyl Pyrrolidino[2,3-<i>b</i>]indolines via Cu<sup>II</sup>-Catalyzed Radical Annulation/C3-Functionalization Sequence
作者:Xiaofeng Chen、Jinbao Fan、Guangyao Zeng、Jinjin Ma、Chenxi Wang、Yajing Wang、Yingjun Zhou、Xu Deng
DOI:10.1021/acs.joc.8b01017
日期:2018.8.3
rendering the process highly environmentally friendly and atom economic. Presumably, the reaction proceeds through CuII-initiated formation of pyrrolidino[2,3-b]indolines radical intermediate I, which is successively trapped by aryl ethylene and O2 to form the product. An 18O2-labeling experiment and several control experiments were designed to support the mechanistic proposal.
报道了色胺胺衍生物与芳基乙烯的Cu II催化的自由基环化/ C 3官能化级联反应。温和的催化系统使3a-苯甲酰基甲基吡咯烷酮[2,3- b ]二氢吲哚的结构简单,具有出色的化学选择性和区域选择性。值得注意的是,这种新颖的方法利用了地球上丰富且廉价的铜盐作为催化剂,并使用了空气作为助氧化剂,从而使该工艺具有高度的环境友好性和原子经济性。据推测,该反应通过Cu II-引发的吡咯烷并[2,3- b ]二氢吲哚基自由基中间体I的进行而进行,该中间体I依次被芳基乙烯和O 2捕获以形成产物。一个18设计了O 2标记实验和一些对照实验以支持该机制。
[EN] COMPOSITIONS AND METHODS FOR G-PROTEIN-COUPLED RECEPTOR 44 DETECTION<br/>[FR] COMPOSITIONS ET PROCÉDÉS DE DÉTECTION DU RÉCEPTEUR 44 COUPLÉ À LA PROTÉINE G
申请人:HOPE CITY
公开号:WO2022046605A1
公开(公告)日:2022-03-03
Disclosed herein, inter alia, are compounds and methods for G-protein- coupled receptor 44 detection.
本文披露了用于检测G蛋白偶联受体44的化合物和方法,其中包括其他内容。
Gold-Catalyzed Spirocyclization Reactions of <i>N</i>-Propargyl Tryptamines and Tryptophans in Aqueous Media
derivatives that are readily available from both synthetic and biocatalytic approaches undergo gold-catalyzed dearomative cyclizations in aqueousmedia to the corresponding spirocyclic derivatives. In addition to the efficiency of the method, operating in aqueousmedia affords a selective entry to C2-unsubstituted spiroindolenines that have long remained unattainable by Au(I) catalysis. Moderate to excellent