90173-08-3Relevant academic research and scientific papers
C2-symmetric cyclic selenium-catalyzed enantioselective bromoaminocyclization
Chen, Feng,Tan, Chong Kiat,Yeung, Ying-Yeung
supporting information, p. 1232 - 1235 (2013/03/28)
A catalytic asymmetric bromocyclization of trisubstituted olefinic amides that uses a C2-symmetric mannitol-derived cyclic selenium catalyst and a stoichiometric amount of N-bromophthalimide is reported. The resulting enantioenriched pyrrolidine products, which contain two stereogenic centers, can undergo rearrangement to yield 2,3-disubstituted piperidines with excellent diastereoselectivity and enantiospecificity.
Vinylogous Wolff Rearrangement. 4. General Reaction of β,γ-Unsaturated α'-Diazo Ketones
Smith, Amos B.,Toder, Bruce H.,Branca, Stephen J.
, p. 3995 - 4001 (2007/10/02)
The preparation and vinylogous Wolff rearrangement (VWR) of some 21 acyclic and monocyclic β,γ-unsaturated α'-diazo ketones are described.The resulting γ,δ-unsaturated esters are summarized in Tables I-VI.The rearrangement is promoted by CuSO4, Cu(AcAc)2,
