Facile Assembly of Fused Isoquinolines by Gold(I)-Catalyzed Coupling-Cyclization Reactions between o-Alkynylbenzaldehydes and Aromatic Amines Containing Tethered Nucleophiles
作者:Nitin T. Patil、Anil Kumar Mutyala、Pediredla G. V. V. Lakshmi、Penmatcha V. K. Raju、Balasubramanian Sridhar
DOI:10.1002/ejoc.200901364
日期:2010.4
A gold(I)-catalyzed, operationally simple coupling-cyclization technique was developed for the synthesis of isoquinoline-fused polycyclic compounds. The reaction makes use of two coupling partners such as o-alkynylbenzaldehydes and aromaticamines having tetherednucleophiles. The reaction is easy to perform, broad in scope, and allows the generation of a number of biologically important heterocyclic
Highly Selective Electrophile-Induced Cascade Reactions between<i>o</i>-Alkynylbenzaldehydes and Styrene Oxides Leading to the Formation of 1-Naphthyl Ketones
作者:Nitin T. Patil、Ashok Konala、Vipender Singh、Vaddu V. N. Reddy
DOI:10.1002/ejoc.200900809
日期:2009.10
for the synthesis of naphthalene derivatives through reaction of o-alkynylbenzaldehydes and styreneoxides in the presence of molecular iodine was developed. The reaction involves Meinwald rearrangement of styreneoxides to form the corresponding aryl acetaldehydes. The enol forms of aryl acetaldehydes might undergo [4+2] benzannulation reactions with iodinated benzopyrilium ions, formed in situ from