552838-99-0Relevant academic research and scientific papers
Palladium-catalyzed oxidative borylative carbocyclization of enallenes
Persson, Andreas K. A.,Jiang, Tuo,Johnson, Magnus T.,Baeckvall, Jan-E.
, p. 6155 - 6159 (2011/08/07)
An efficient oxidative carbocyclization/borylation of enallenes uses Pd(OAc)2 as the catalyst, B2pin2 as the boron-transfer reagent, and 1,4-benzoquinone (BQ) as the oxidant (see scheme). The reaction seems to take place through activation of the allene by a Pd II complex to give an alkenyl-PdII intermediate followed by carbopalladation of the olefin and subsequent cleavage of the intermediate palladium-carbon bond by the boron reagent. Copyright
PdII-catalyzed aerobic allylic oxidative carbocyclization of allene-substituted olefins: Immobilization of an oxygen-activating catalyst
Piera, Julio,Naerhi, Katja,Baeckvall, Jan-E.
, p. 6914 - 6917 (2008/01/27)
(Chemical Equation Presented) A good couple: Highly selective aerobic allylic oxidation with C-C bond formation is achieved by the use of coupled palladium and iron catalysis (see scheme; FePc = iron phthalocyanine). The use of an oxygen-activating catalyst is necessary for an efficient electron transfer from Pd0 to O2. The utility of this method is enhanced by the immobilization of the iron catalyst onto a resin.
Carbon-carbon bond formation in palladium(II)-catalyzed allylic oxidation: A novel oxidative carbocyclization of allene-substituted olefins
Franzen, Johan,Baeckvall, Jan-E.
, p. 6056 - 6057 (2007/10/03)
A new efficient palladium(II)-catalyzed oxidative carbocyclization has been developed. It was found that allene-substituted olefins 1 cyclized in the presence of 1 mol % Pd(O2CCF3)2 and p-benzoquinone (2 equiv) to give bic
