54445-54-4Relevant articles and documents
DIRHODIUM TETRAACETATE-CATALYZED DECOMPOSITION OF β,γ-UNSATURATED DIAZO KETONES: A NEW ENTRY TO VINYLOGOUS WOLFF REARRANGEMENT
Ceccherelli, Paolo,Curini, Massimo,Marcotullio, Maria Carla,Rosati, Ornelio
, p. 177 - 180 (2007/10/02)
Dirhodium tetraacetate-catalyzed decomposition of the β,γ-unsaturated diazo ketones 1 - 4, in the presence of methanol, leads to γ,δ-unsaturated esters 5 - 8 via zwitterionic intermediates (i.e., d).
Nucleophile-Selective Iodocyclizations: Butyrolactone versus Tetrahydrofuran Formation
Kurth, Mark J.,Beard, Richard L.,Olmstead, Marilyn,Macmillan, James G.
, p. 3712 - 3717 (2007/10/02)
Nucleophile selectivity in the electrophilic cyclization of substrates like 3 has been investigated in the context of efficient chemo- and stereoselective functionalization of 3-hydroxy-2-(2-methylenecyclohexan-1-yl)butyric acids (cf., 6-9) via iodocycliz
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,