AgSCF3/Na2S2O8-Promoted Trifluoromethylthiolation/Cyclization of o-Propargyl Arylazides/o-Alkynyl Benzylazides: Synthesis of SCF3-Substituted Quinolines and Isoquinolines
摘要:
A AgSCF3/Na2S2O8-promoted trifluoromethylthiolation/cascade cyclization of o-propargyl arylazides (or o-alkynyl benzylazides) triggered by a carbon carbon triple bond is reported. This strategy provides the synthesis of " valuable SCF3-substituted quinoline and isoquinoline systems via the construction of one C(sp(2)) SCF3 bond and one C-N bond within one process.
Palladium-Catalyzed Synthesis of Indoles and Isoquinolines with <i>in Situ</i> Generated Phosphinimine
作者:Qi Zhou、Zhikun Zhang、Yujing Zhou、Shichao Li、Yan Zhang、Jianbo Wang
DOI:10.1021/acs.joc.6b01864
日期:2017.1.6
A palladium-catalyzed synthesis of polysubstituted indoles and isoquinolines through the coupling of aryl bromides with 2-alkynyl arylazides or 2-alkynyl benzylazides has been developed. This method provides straightforward access to indoles and isoquinolines with high efficiency and excellent functional group compatibility. In this transformation, the iminophosphorane in situ generated from azides
A new, selective method for the synthesis of 4-haloisoquinolines and 3-haloindoles is presented by the halopalladation cyclizations of alkynes with azides. In the presence of PdX2 (X = Br, Cl) and halide sources, a variety of 2-alkynylbenzylazides or 2-alkynyl aryl azides smoothly underwent the halopalladation cyclization reaction to afford the corresponding 3-substituted 4-haloisoquinolines and
A Novel Method for the Synthesis of Haloisoquinolines Involving an Electrophile-exchange Process
作者:Hong-Ping Zhang、Hong-Yan Li
DOI:10.3184/174751914x14140703941872
日期:2014.11
A synthesis of haloisoquinolines through electrophilic cyclisation involving an electrophilic-exchange process has been developed. A variety of 2-alkynylbenzylazides are cyclised in the presence of KX (X = I, Br, Cl) and electrophilic fluoride reagents, to afford the corresponding haloisoquinolines in moderate to good yields. Reagents for electrophilic halogenation have been generated from their