In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Application In Synthesis of Pd2(DBA)3, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 52409-22-0, name is Pd2(DBA)3. In an article£¬Which mentioned a new discovery about 52409-22-0
Radiosynthesis of carbon-11 labeled 6-methyldopamine ([11C]MeDA)
A rapid and efficient n.c.a. radiosynthesis of 6-[11C]methyldopamine ([11C]MeDA) using the Stille cross-coupling reaction as a key step was developed. The labeling conditions for the formation of the intermediate compound (protected [11C]MeDA, [11C]7) were determined with respect to reaction temperature and time. The radiochemical yield 89¡À1.4% (decay-corrected) of the protected intermediate [11C]7 was obtained at a reaction temperature of 60C and a reaction time of 5min using Pd2(dba)3/P(o-tolyl)3 and CsF/CuBr as a co-catalyst system. The overall yield after deprotection with 45% HBr at 140C for 10min was 64¡À3.9% (decay-corrected) within a total preparation time of 40min, including hydrolysis, HPLC purification and formulation.
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Reference£º
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method