Synthesis of Isoquinolines from Benzimidates and Alkynes via Cobalt(III)-Catalyzed C–H Functionalization/Cyclization
作者:Shasha Gong、Wanlin Xi、Zhenhua Ding、Haiying Sun
DOI:10.1021/acs.joc.7b01052
日期:2017.7.21
C–H alkenylation/annulation of benzimidates with alkynes has been realized by using a Cp*Co(III) catalyst under air. A series of substituted isoquinolines were obtained with moderate to good yields under mild reaction conditions.
A rhodium-catalyzed annulation between ethyl benzimidates and alpha- aroyl sulfur ylides was developed, affording a series of pyrano[4,3,2-ij]isoquinoline derivatives in moderate to good yields with good functional group compatibility. The procedure featured dual ortho-C-H functionalization and dual cyclization in one pot. The optoelectronic properties of those fused heteroarenes were tested by UV/vis and fluorescence spectrometers.
Gabriel, Chemische Berichte, 1886, vol. 19, p. 838
作者:Gabriel
DOI:——
日期:——
Platinum(II)-catalyzed intramolecular cyclization of alkynylbenzonitriles: synthesis of 1-alkoxyisoquinolines and isoquinolones
作者:Jim Li、Lijing Chen、Elbert Chin、Alfred S. Lui、Hasim Zecic
DOI:10.1016/j.tetlet.2010.09.136
日期:2010.12
A facile synthesis of a series of 1-alkoxyisoguinolines and (2H)-isoguinolones by an intramolecular 6-endo-dig cyclization of ortho-alkynylbenzonitriles in the presence of a catalytic amount of hydrido(dimethylphosphinous acid-kappa P)[hydrogen bis(dimethylphosphinito-kappa P)]platinum(II) in various alcohols at 65-90 degrees C is described for the first time. (C) 2010 Elsevier Ltd. All rights reserved.
Pyrylium Salts via Electrophilic Cyclization: Applications for Novel 3-Arylisoquinoline Syntheses