Reference of 32005-36-0, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.32005-36-0, Name is Bis(dibenzylideneacetone)palladium, molecular formula is C34H28O2Pd. In a Article，once mentioned of 32005-36-0
A new method for the synthesis of highly substituted allyl azides by carboazidation of allenes catalyzed by palladium complexes is described. Treatment of 1,1-dimethylallene (1a) with an aromatic iodide ArI 2 (4-CH3COC6H4I, 4-CH3OC6H4I, 3-CH3OC6H4I,4-CH3C6H 4I, 3-CH3C6H4I, 3-C2H5OCOC6H4I,4-C2H 5OCOC6H4I, 4-ClC6H4I, 3-BrC6H4I or 1-iodothiophene), (CH3)3SiN3 and KOAc in the presence of Pd(dba)2 (dba = dibenzylideneacetone) in DMF at 70 C gave two regioisomers (CH3)2CC(Ar)CH2N3 3 and (CH3)2(N3)CC(Ar)CH2 4 in good to excellent yields. The observed regio- and stereoisomer ratios of the allyl azides from these reactions are close to the equilibrium ratio of these isomers at ambient temperature due to a rapid 1,3-shift of the azido group. Reduction of a mixture of 3a and 4a (80:20, Ar = 4-C6H4COMe) by PPh3-H2O afforded only the sterically less hindered (CH3)2C=C(Ar)-CH2NH2 in 95% yield further supporting a rapid 1,3-azide shift of 3a and 4a. Mono-substituted allenes RCHCCH2 also undergo carboazidation with aryl iodides and (CH3)3SiN3 in good to excellent yields. For n-butyl-, cyclopentyl-and cyclohexylallene (1b-d), carboazidation gives three isomers 5, 6 and 7 in ca. 1:1:1 ratio. For phenyl- and phenoxyallene (1e and f), the reaction produces two stereoisomers Z- (5) and E-CHR=C(Ar)CH2N3 (6), where R = Ph and PhO; the regioisomer RCH(N3)C(Ar)=CH2 (7) was not observed. In contrast, carboazidation of tert-butylallene (1g) afforded regioisomer t-BuHC(N3)C(Ar)=CH2 as the major product (?90% yield). Based on known palladium-allene and -allyl chemistry, a mechanism is proposed to account for this palladium-catalyzed three-component assembling reaction. The Royal Society of Chemistry 2000.
We’ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, the role of 32005-36-0, and how the biochemistry of the body works.Reference of 32005-36-0
Reference：
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method