Palladium-catalyzed coupling of vinyl tosylates with arylsulfinate salts
作者:Diana C. Reeves、Sonia Rodriguez、Heewon Lee、Nizar Haddad、Dhileep Krishnamurthy、Chris H. Senanayake
DOI:10.1016/j.tetlet.2009.03.174
日期:2009.6
The first palladium-catalyzedcoupling of vinyl tosylates with arylsulfinate salts is described. A variety of cyclic and acyclic vinyl tosylates were coupled with aryl sulfinate salts using 2.5 mol % Pd2(dba)3/5.0 mol % XantPhos to give vinyl aryl sulfone products in good yields. The coupling was extended to the preparation of a cyclopropyl vinyl sulfone.
Suzuki–Miyaura cross-coupling of alkenyl tosylates with alkenyl MIDA boronates
作者:Monique Lüthy、Richard J.K. Taylor
DOI:10.1016/j.tetlet.2012.04.091
日期:2012.7
procedure for the palladium-catalysed Suzuki–Miyaura coupling of various alkenyltosylates with alkenyl MIDA boronates has been developed. Commercially available trans-bromo[N-succinimidyl-bis(triphenylphosphine)]palladium(II) [Pd(PPh3)2NBS] is an effective catalyst under the slow release conditions of MIDA boronates; with less activated alkenyltosylates addition of the cheap, air-stable tricyclohexylphosphine
Conversion of meso-Hydrobenzoin with Arylsulfonyl Chlorides and Base to trans-Stilbene Oxide and to 1,1-Diphenyl-2-(p-toluenesulfonyloxy)ethylene<sup>1</sup>