Synthesis of Naphthalene Amino Esters by the Blaise Reaction of <i>o</i>-Alkynylarenenitriles
作者:Karuppusamy Sakthivel、Kannupal Srinivasan
DOI:10.1021/jo500137m
日期:2014.4.4
The action of a Reformatsky reagent on o-alkynylarenenitriles provides a convenient access to naphthalene amino esters via tandem 6-endo-dig carbannulation of in situ generated Blaise reaction intermediates. The products are formed in moderate to good yields with high chemo- and regioselectivity.
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.