40025-43-2Relevant academic research and scientific papers
Direct arylation of heteroarenes catalyzed by a palladium-1,10- phenanthroline complex
Takita, Ryo,Fujita, Daichi,Ozawa, Fumiyuki
supporting information; experimental part, p. 959 - 963 (2011/06/17)
A new entry in direct arylation of heteroarenes using Pd(OAc)2 and 1,10-phenanthroline as a nitrogen-based ligand is reported. The long induction period observed at the initial stage of the reaction was effectively reduced by modification of th
Preparation of furans by palladium-catalyzed reaction of acylchromates and propargylic tosylates
Nakamura, Masaki,Yamane, Motoki,Sakurai, Hidehiro,Narasaka, Koichi
, p. 333 - 345 (2007/10/03)
Substituted furans are prepared by the palladium-catalyzed reaction of propargylic tosylates with acylchromates. The reaction is initiated by the oxidative additiion of propagylic tosylates to palladium(O) complexes to give 1,2-propadienylpalladium(II) co
Substituted propargylic sulfoxides: synthesis and -sigmatropic rearrangement in the presence of thiophilic reagents
Baudin, J. B.,Julia, S. A.,Lorne, R.
, p. 440 - 456 (2007/10/02)
The allenic sulfoxides 2 and 12 were converted into the substituted propargylic sulfoxides 3 and 13, respectively, by deprotonation with methyl lithium and reaction with electrophilic reagents.Smooth thermal -sigmatropic rearrangement of 3 and 13, using 2-mercapto-1-methylimidazole to desulfurize the intermediate allenic sulfenate XVa, yielded the corresponding conjugated enones 10.The possible reaction mechanism for these two transformations were examined. Key words: Allenic sulfoxides; propargylic sulfoxides; organolithium compounds adjacent to sulfoxides; -sigmatropic rearrangement; desulfurization; α,β-unsaturated enones; furanes.
