Heck Reaction of Amino Acid Derived Vinyl Substrates in the Synthesis of Homotyrosinol Derivatives
作者:Marco Ciufolini、Huan Liang、Yuan Zhou
DOI:10.1055/s-0029-1218830
日期:2010.8
An avenue to homotyrosinol derivatives through a Heck coupling of 4-iodophenyl acetate with a vinylglycinol derivative required extensive screening of catalysts and conditions. The use of Pd(OAc)2 and N-phenylurea as the ligand ultimately provided excellent results. coupling - Heck reaction - homotyrosine - palladium - N-phenylurea
Oxidative Spirocyclization of Phenolic Sulfonamides: Scope and Applications
作者:Huan Liang、Marco A. Ciufolini
DOI:10.1002/chem.201001402
日期:2010.11.22
A full account of the oxidative dearomatization of para‐ and ortho‐phenolic sulfonamides is provided together with an overview of the chemistry of the products and their elaboration to buildingblocks for spirocyclic alkaloids. A concise total synthesis of putative lepadiformine complements the discussion.