Electric Literature of 2008-75-5, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.2008-75-5, Name is 1-(2-Chloroethyl)piperidine hydrochloride, molecular formula is C7H15Cl2N. In a Article，once mentioned of 2008-75-5
The reactions of in-situ generated PhS-, PyS- and PhSe- with 4-(2-chloroethyl)morpholine hydrochloride and 1-(2-chloroethyl)piperidine hydrochloride in N2 atmosphere have resulted in N-{2-(arylchalcogeno)ethyl}morpholine/piperidine ligands (L1-L6), which on reaction with Na2PdCl4 at room temperature result in complexes of composition [PdCl2(L)] (1-6; L = L1-L6). All the complexes except 2 have been characterized by X-ray crystallography. The geometry around Pd is nearly square planar in all the cases. The Pd-S and Pd-Se bond lengths are in the ranges 2.2598(10)-2.2795(14) and 2.3541(6)-2.3632(15) A, respectively. In 77Se{1H} NMR spectra of Pd(II)-complexes with L5 and L6 (Se ligands), the signals appear at higher frequency (up to 187 ppm) with respect to those of corresponding free ligands. Pd(II)-complexes (2, 4 and 6) have been found promising for Heck reaction of aryl bromides with methyl acrylate. The TON values are up to 18 200 and TOF up to 758 h-1 (with complex 6 as catalyst). The Pd-complexes of piperidene derivatives show little higher catalytic efficiency than those of morpholine ones. The positive Hg-test has implied that nano-sized Pd(0) species probably catalyze Heck reactions.
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Reference：
Piperidine – Wikipedia,
Piperidine | C5H11014N – PubChem