B. K. Allam and K. N. Singh, “An Efficient Phosphine-Free Heck Reaction in Water Using Pd(L-Proline)(2) as the Catalyst Under Microwave Irradiation,” Synthesis, Vol. 2011, No. 7, 2011, pp. 1125-1131.
http://dx.doi.org/10.1055/s-0030-1258452

has been cited by the following article:

• TITLE: Heck Reactions with Ultralow Concentration of Transition Metals under Microwave Irradiation

  AUTHORS: Hongjun Wang, Haiyang Cheng, Fengyu Zhao

  KEYWORDS: Heck Reaction; Microwave Irradiation; Ultralow Concentration; Transition Metal Catalysts; Water

  JOURNAL NAME: Green and Sustainable Chemistry, Vol.4 No.1, January 27, 2014

  ABSTRACT: The Heck coupling reactions of aryl halides and olefins were performed under the microwave assistance. Interestingly, the ultralow concentration of transition metals (in ppb) coming from the reactants could catalyze the Heck coupling reactions under microwave irradiation, without addition of any catalysts, ligands and phase-transfer agents. The influences of bases, solvents and temperature were discussed, and the reaction rate was enhanced largely in the mixed solvents of NMP and water due to the solubility of base in water.