Synthetic Utility of Propylphosphonic Anhydride–DMSO Media: An Efficient One-pot Three-component Synthesis of 2-Arylquinolines
作者:Kereyagalahally H. Narasimhamurthy、Siddappa Chandrappa、Kothanahally S. Sharath Kumar、Toreshettahally R. Swaroop、Kanchugarakoppal S. Rangappa
DOI:10.1246/cl.130432
日期:2013.9.5
Propylphosphonic anhydride (T3P®)–DMSO-mediated one-pot three-component synthesis which provides 2-arylquinolines in a single step from benzyl alcohols, anilines, and ethyl vinyl ether by the modified Povarov reaction has been demonstrated. T3P®–DMSO is a mild and low-toxic peptide coupling agent and an easy to handle reagent for bulk reactions at room temperature.
Coupling Radical Homoallylic Expansions with C–C Fragmentations for the Synthesis of Heteroaromatics: Quinolines from Reactions of <i>o</i>-Alkenylarylisonitriles with Aryl, Alkyl, and Perfluoroalkyl Radicals
作者:Christopher J. Evoniuk、Gabriel dos Passos Gomes、Michelle Ly、Frankie D. White、Igor V. Alabugin
DOI:10.1021/acs.joc.7b00262
日期:2017.4.21
radicals to isonitriles can be harnessed for initiating reaction cascades designed to overcome the stereoelectronic restrictions on homoallylic ring expansion in alkyne reactions and to develop a new general route for the preparation of N-heteroaromatics. This method utilizes alkenes as synthetic equivalents of alkynes by coupling homoallylic ring expansion to yield the formal “6-endo” products with aromatization
Coupling cyclizations with fragmentations for the preparation of heteroaromatics: quinolines from o-alkenyl arylisocyanides and boronic acids
作者:Christopher J. Evoniuk、Michelle Ly、Igor V. Alabugin
DOI:10.1039/c5cc04391c
日期:——
Stereoelectronic restrictions on homoallylic ring expansion in alkyne cascades can be overcome by using alkenes as synthetic equivalents of alkynes in reaction cascades that are terminated by C-C bond fragmentation....