Surface-mediated isomerization and oxidation of allyl alcohol on copper(110)
作者:Robert L. Brainard、Cynthia G. Peterson、Robert J. Madix
DOI:10.1021/ja00195a003
日期:1989.6
3})CHsub2}O-)sub (a)} and complete hydrogenation to CHsub 3}CHsub2}CHsub2}Osub (a)}. Propanal forms at 320 K via further reaction of these oxametallacycles. Evidence for a pi}-bonded allyl oxide CHsub2}double bond}CHCHsub2}Osub (a)}, which is more stable than n-propoxide (CHsub 3}CHsub2}CHsub2}Osub (a)}) toward beta}-hydride elimination, is presented. This allyl oxide decomposes
An efficient didehydroxylation method for the biomass-derived polyols glycerol and erythritol. Mechanistic studies of a formic acid-mediated deoxygenation
作者:Elena Arceo、Peter Marsden、Robert G. Bergman、Jonathan A. Ellman
DOI:10.1039/b907746d
日期:——
An efficient 1,2-deoxygenation method, involving an unexpected mechanism, was found for simple diols and for biomass-derived polyols (glycerol and erythritol) that results in the conversion of the 1,2-dihydroxy group to a carbon–carbon double bond.
A Tandem Reaction Initiated by 1,4-Addition of Bis(iodozincio)methane for 1,3-Diketone Formation
作者:Mutsumi Sada、Seijiro Matsubara
DOI:10.1021/ja910428y
日期:2010.1.20
Treatment of an gamma-acyloxy-alpha,beta-unsaturated ketone with bis(iodozincio)methane leads to a novel tandem reaction consisting of three steps: (1) 1,4-addition of the dizinc reagent to the enone, which affords the corresponding zinc enolate of the beta-zinciomethylated ketone; (2) intramolecular nucleophilic attack by the enolate on the ester group; and (3) Grob-type fragmentation of the adduct
Homogeneous catalysis. Catalytic production of simple enols
作者:Steven H. Bergens、B. Bosnich
DOI:10.1021/ja00003a032
日期:1991.1
for generating synthetically useful quantities of simpleenols from their corresponding allylic alcohols. A representative collection of simpleenols has been produced, and the physical properties and stabilities are recorded. Although these catalysts also ketonize (tautomerize) the enols to their corresponding aldehydes and ketones, the simpleenols are conveniently stable in solutions containing the
Mechanistic Insights into the Pd-Catalyzed Direct Amination of Allyl Alcohols: Evidence for an Outer-Sphere Mechanism Involving a Palladium Hydride Intermediate
作者:Supaporn Sawadjoon、Per J. R. Sjöberg、Andreas Orthaber、Olle Matsson、Joseph S. M. Samec
DOI:10.1002/chem.201303431
日期:2014.2.3
The mechanism of directamination of allylalcohol by a palladium triphenylphosphite complex has been explored. Labelling studies show that the reaction proceeds through a π‐allylpalladium intermediate. A second‐order dependence of reaction rate on allylalcohol concentration was observed. Kinetic isotope effect studies and ESI‐MS studies are in agreement with a reaction proceeding through a palladium