REACTION GUIDES

We tested the Superstable Pd(0) Catalyst in Suzuki, Heck, Sonogashira reactions and in CH activation. We used class 2, class 3 and some specific alternative solvents. The efficiency of the SUPERSTABLE Pd(0) CATALYST depends on the temperature. The optimal temperature is generally between 90 and 130 oC. 

 

SUZUKI COUPLING

Solvent: 1,4-dioxane, DMF, DMSO, DMSO-H2O (10:1), Ethylal, Glycerol-formal, n-BuOH, n-BuOH-H2O (10:1), NMP, MEK-H2O (10:1), MeOH-H2O (10:1), Methylal, MIBK-H2O (10:1)
Base: K2CO3, K3PO4, NaOtBu
Yield=66-97%; T=40-130 °C Highly efficient microwave-assisted Suzuki coupling of aryl chlorides can achieved even in five minutes. 

HECK COUPLING

Solvent: DMF, Glycerol-formal, n-BuOH, NMP, MeOH-H2O (10:1), MIBK
Base: K2CO3, K3PO4, TEA
Yield=38-96%; T=90-130 °C

 

SONOGASHIRA COUPLING

Copper free method!
Solvent: DMF, DMSO, Glycerol-formal, n-BuOH, MeOH-H2O (5:1)
Base: K2CO3
Yield=66-87%; T=90-130 °C


CH ACTIVATION


Solvent: DMA
Base: K2COAdditive: 30 mol% PivOH
Yield=47-88%; T=130-140 °C