29744-92-1Relevant academic research and scientific papers
Palladium(II)-catalyzed aerobic hydroalkoxylation of styrenes containing a phenol
Gligorich, Keith M.,Schultz, Mitchell J.,Sigman, Matthew S.
, p. 2794 - 2795 (2007/10/03)
An intermolecular Pd-catalyzed hydroalkoxylation of styrenes that contain a phenol is presented. The reaction can be performed on terminal, disubstituted, and trisubstituted olefins in a variety of alcoholic solvents. Initial mechanistic data suggest a mechanism that involves oxidation of the alcoholic solvent to provide a Pd-hydride that inserts into an olefin. This is followed by formation of a quinone methide and subsequent addition of an alcohol to yield the hydroalkoxylated product. Copyright
Pd(II)-catalyzed conversion of styrene derivatives to acetals: Impact of (-)-sparteine on regioselectivity
Balija, Amy M.,Stowers, Kara J.,Schultz, Mitchell J.,Sigman, Matthew S.
, p. 1121 - 1124 (2007/10/03)
Pd[(-)-sparteine]Cl2 catalyzes the formation of dialkyl acetals from styrene derivatives with Markovnikov regioselectivity. The substrate scope of this reaction has been investigated, and initial mechanistic studies indicate that the reaction proceeds through an enol ether intermediate and a Pd-hydride.
2,4,4,6-Tetrabromo-2,5-cyclohexadienone (TABCO) as a versatile, efficient, and chemoselective catalyst for the acetalization and transacetalization of carbonyl compounds, the preparation of acetonides from epoxides and acylals (1,1-diacetates) from aldehydes
Firouzabadi, Habib,Iranpoor, Nasser,Shaterian, Hamid Reza
, p. 2195 - 2205 (2007/10/03)
The efficient and chemoselective preparation of acetals and ketals from carbonyl compounds, transacetalization reactions, the conversion of epoxides to acetonides, and the preparation of acylals from aldehydes in the presence of catalytic amounts of 2,4,4,6-tetrabromo-2,5-cyclohexadienone (TABCO) are described.
18O-Isotope Effect in 13C Nuclear Magnetic Resonance Spectroscopy. 5 - Substituent Group Electronic Effects in Substituted Acetophenones
Risley, John M.,DeFrees, Shawn A.,Etten, Robert L. Van
, p. 28 - 35 (2007/10/02)
A series of para- and meta-substituted acetophenones were prpared which were highly labeled with 18O at the carbonyl function.The natural abundance 13C NMR spectra of the compounds were recorded and the 18O-isotope-induced shifts of the carbonyl carbon we
