It is a common heterocyclic compound, the chiral-catalyst compound, 1,3-Dimesityl-4,5-dihydro-1H-imidazol-3-ium chloride, cas is 173035-10-4 its synthesis route is as follows.,173035-10-4
General procedure: [HIPr]2[PdCl4]: 0.45 g (1.0 mmol) of [HIPr]Cl was added to thesolution of 0.14 g (0.48 mmol) PdCl2(cod) in hot CH3CN (5 mL). Themixture was heated for 15 min, until the yellow solution becamered. The solution was cooled to room temperature and solventwas removed under reduced pressure. The product was precip-itated by addition of diethyl ether (2-3 mL). Product yield: 85%;elemental analysis calcd. (%) for PdCl4C54H78N4: C 62.88, H 7.62,N 5.46; found: C 62.37, H 7.46, N 5.40.1H NMR(500 MHz, CD3CN,25C, TMS): = 8.49 (s, 2H, N CH N); 7.57 (t, J(H,H) = 7.8 Hz, 4H,Ar); 7.42 (d, J(H,H) = 7.8 Hz, 8H, Ar); 4.48 (s, 8H, CH2CH2); 3.10(m, J(H,H) = 6.9 Hz, 8H, CH); 1.40 (d, J(H,H) = 6.9 Hz, 24H, CH3); 1.26(d, J(H,H) = 6.9 Hz, 24H, CH3,);13C NMR (125.75 MHz, CD3CN, 25C,TMS): = 160.0 (N CH N); 147.2 (Ar); 131.0 (Ar); 125.5 (Ar); 53.7(CH2CH2); 28.5 (CH); 24.0 (CH3); 23.5 (CH3).
With the complex challenges of chemical substances, we look forward to future research findings about 1,3-Dimesityl-4,5-dihydro-1H-imidazol-3-ium chloride
Reference£º
Article; Silarska; Trzeciak; Pernak; Skrzypczak; Applied Catalysis A: General; vol. 466; (2013); p. 216 – 223;,
Chiral Catalysts
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