66338-51-0Relevant academic research and scientific papers
Palladium-catalyzed borylation of aryl mesylates and tosylates and their applications in one-pot sequential suzuki-miyaura biaryl synthesis
Chow, Wing Kin,So, Chau Ming,Lau, Chak Po,Kwong, Fuk Yee
supporting information; experimental part, p. 6913 - 6917 (2011/08/03)
Top of the one-pots! The first palladium-catalyzed borylation of aryl tosylates and mesylates is described. The reaction conditions are mild and provide excellent functional-group compatibility (e.g., R=CN, CHO, COOMe, C(O)R, NH2, or NH-indole; see scheme). Pd/MeO-CM-phos allows one-pot sequential reactions in the preparation of unsymmetrical biaryls. Copyright
A mild and efficient palladium-catalyzed cyanation of aryl mesylates in water or tBuOH/water
Yeung, Pui Yee,So, Chau Ming,Lau, Chak Po,Kwong, Fuk Yee
supporting information; experimental part, p. 8918 - 8922 (2011/02/24)
Cool and compatible: Aryl mesylates and tosylates underwent palladium-catalyzed cyanation under mild, aqueous conditions at 65-80°C (see scheme). In many cases, water could be used as the reaction medium without a cosolvent, and a variety of substituents R, such as keto, aldehyde, ester, free amine, and nitrile groups, remained intact during the transformation. Cy=cyclohexyl, Ms=methanesulfonyl, Ts=p-toluenesulfonyl.
Palladium-catalyzed carbonylation of aryl tosylates and mesylates
Munday, Rachel H.,Martinelli, Joseph R.,Buchwald, Stephen L.
, p. 2754 - 2755 (2008/09/19)
A general protocol for the palladium-catalyzed carbonylation of aryl tosylates and mesylates to form esters has been developed using a catalyst system derived from Pd(OAc)2 and the bulky, bidentate dcpp ligand. The system operates under mild conditions: atmospheric CO pressure and temperatures of 80-110 °C. A broad substrate scope has been demonstrated allowing carbonylation of electron-rich, electron-poor, and heterocyclic tosylates and mesylates, and the reaction shows wide functional group tolerance. Copyright
A general palladium-catalyzed Suzuki-Miyaura coupling of aryl mesylates
So, Chau Ming,Lau, Chak Po,Kwong, Fuk Yee
supporting information; experimental part, p. 8059 - 8063 (2009/04/13)
(Chemical Equation Presented) Catalyze this! The first palladium-catalyzed Suzuki-Miyaura coupling of unactivated aryl mesylates is reported, with not only arylboronic acids, but also other organoboron nucleophiles (see picture; Z=B(OH)2, BF3K, BPin). The reaction conditions are compatible with various common functional groups (R1=alkyl, OMe, CHO, CO, CN, CO2R′, heteroaryl).
3-Methoxy-4-arylsulphonyloxy-acetophenones
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, (2008/06/13)
The invention relates to new compounds of the general formula : STR1 wherein X represents a hydrogen or halogen atom, R1 and R2, which are the same or different, each represent a hydrogen atom or a methoxy radical and R3 r
Phenyl-2 indole derivatives
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, (2008/06/13)
2-Phenyl-indole derivatives of the general formula: STR1 wherein R1 represents a hydroxy radical, a branched- or straight-chain alkyloxy group containing from 1 to 12 carbon atoms, an allyloxy or propargyloxy radical, a cylcoalkyloxy radical co
