A convenient synthesis of ortho–ortho disubstituted biphenyls containing an eight-membered lactam ring using radical chemistry
作者:C.H. Wang、S. Alluri、A.K. Ganguly
DOI:10.1016/j.tetlet.2009.02.031
日期:2009.4
shows structural similarities to the antimitotic agent rhazinilam and the gamma secretase inhibitor LY411575. The scope of the reaction has been studied by changing the substitutions on the aromatic rings and the mechanism for the formation of 9 and 10 from 4 is suggested.
Novel synthesis and functionalization of ortho–ortho disubstituted biphenyls and a highly condensed novel heterocycle using radical cyclization reaction
This paper describes a novel synthetic route for the preparation of ortho–ortho disubstituted biphenyls and compounds possessing highly condensed ring system represented by structuresX and Y, respectively. Several approaches, such as intermolecular Grubb's olefin metathesis, Heck and, Suzuki reactions were incorporated to functionalize the core structures of X and Y making it suitable for the preparation