... dienes Development of a green chemistry experiment for undergraduate curriculum Sequential use of DAIB and BTI as ...
Nov 16, 2010 - Department of Chemistry, Western Illinois UniVersity, Macomb,. Illinois 61455, United States. [email protected]. Received October 2, 2010.
Nov 16, 2010 - Substrates Used in Head-to-Head Competitive Oxidative Cleavage Reactions with ..... Travis , B. R.; Narayan , R. S.; Borhan , B. J. J. Am. Chem.
and High Technology Research Center, Kansai University,. Suita, Osaka 564-8680, Japan [email protected]. Received February 1, 2002. Abstract: ...
Nov 16, 2010 - Department of Chemistry, Western Illinois UniVersity, Macomb,. Illinois 61455, United States. [email protected]. Received October 2, 2010.
Robert W. Murray*, and Megh Singh. Department of Chemistry, University of MissouriâSt. Louis, St. Louis, Missouri 63121. Chem. Res. Toxicol. , 1998, 11 (5), ...
formed to isolate sufficient quantities of metabolites for structure elucidation. The organism achieves 1 1-0-demethylation of dihydrovindoline, and it performs a ...
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Mar 12, 2007 - Pd(II)-Catalyzed Asymmetric Oxidative 1,2-Diamination of Conjugated Dienes with Ureas ..... Pd(0)-Catalyzed Sequential CâN Bond Formation via Allylic and Aromatic ...... Chemical Communications 2015 51 (19), 4101-4104 ...
Dec 9, 2017 - The organic solvent free auto-oxidative radical hydroxysulfenylation of olefins in a micellar system was presented which enables the simultaneous CâO and CâS couplings to be performed in a green .... Interestingly, 1H NMR tracking r
Oxidative Transformations of Alkenes Using Environmentally Benign Reagents T. K. Vinod Department of Chemistry Western Illinois University Macomb, IL 61455
A facile and operationally convenient procedure for oxidative cleavage of alkenes is reported. An in situ generated aryl-iodonium ion obtained from the oxidation of 4-iodobenzoic acid with Oxone is shown to be an effective reagent for the oxidative cleavage of a wide range of alkenes. The new reaction can be carried out under catalytic conditions using substoichiometric amounts of 4-iodobenzoic acid along with the required amount of Oxone. Competitive oxidative cleavages of different substrates using the procedure has shown that phenyl-conjugated cyclic alkenes are cleaved faster than non-phenyl conjugated alkenes and conformationally rigid cyclic cis-diols are preferred over trans-diols as substrates. Oxidation of elemental iodine to I+ using hypervalent iodine oxidants and the subsequent use of the in-situ generated electrophilic iodine source in co-iodination of alkenes is reported. We believe that we have mechanistically and unequivocally demonstrated the origin of the 100% iodine atom economy observed during the reaction in our recent publication and have illustrated and expanded the synthetic utility for the protocol by using a variety of nucleophilic additives in the reaction.
