70737-22-3Relevant articles and documents
Oxidative Addition of Alkenyl and Alkynyl Iodides to a AuI Complex
Bower, John F.,Cadge, Jamie A.,Russell, Christopher A.,Sparkes, Hazel A.
supporting information, p. 6617 - 6621 (2020/03/13)
The first isolated examples of intermolecular oxidative addition of alkenyl and alkynyl iodides to AuI are reported. Using a 5,5′-difluoro-2,2′-bipyridyl ligated complex, oxidative addition of geometrically defined alkenyl iodides occurs readily, reversibly and stereospecifically to give alkenyl-AuIII complexes. Conversely, reversible alkynyl iodide oxidative addition generates bimetallic complexes containing both AuIII and AuI centers. Stoichiometric studies show that both new initiation modes can form the basis for the development of C?C bond forming cross-couplings.
Sterically biased 3,3-sigmatropic rearrangement of chiral allylic azides: Application to the total syntheses of alkaloids
Lauzon, Sophie,Tremblay, Francois,Gagnon, David,Godbout, Cedrickx,Chabot, Christine,Mercier-Shanks, Catherine,Perreault, Stephane,DeSeve, Helene,Spino, Claude
, p. 6239 - 6250 (2008/12/22)
(Chemical Equation Presented) We describe a tandem Mitsunobu/3,3- sigmatropic rearrangement of allylic azides on a chiral auxiliary system that favors one regioisomer thanks to its exceptional steric bias. The sequence may be completed by the oxidative cleavage of the auxiliary or by a ring-closing metathesis reaction that produces a carbo-or heterocycle directly and a recyclable form of the chiral auxiliary. Applications of the methodology to the total synthesis of (+)-coniine, (+)-lentiginosin, and (+)-pumiliotoxin C are reported.