173035-10-4, 1,3-Dimesityl-4,5-dihydro-1H-imidazol-3-ium chloride is a chiral-catalyst compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
A suspension of 383.0 mg (1.08 mmol) of 1,3-bis(2,4,6-trimethylphenyl)-imidazolidinium chloride (commercially available from Aaron Chemistry GmbH, D-85386 Eching) and 0.67 ml (1.14 mmol) of potassium tert.-pentylate (1.7 M in toluene) was suspended in 25 ml hexane and heated at 50 C. for 10 min. A suspension of 500.0 mg (0.54 mmol) of [RuCl2(PCy3)2(3-phenyl-indenylidene)] (commercially available from Umicore AG, D-63457 Hanau-Wolfgang) in 16 ml of hexane was added and the resulting red suspension stirred at 50 C. for 18 h. The reaction mixture was evaporated to dryness and the isolated crude product purified by silica gel chromatography (hexane/diethylether 6:4) to yield 257.0 mg (50%) of the title compound as red crystals. MS: 948.3 (M+). 31P-NMR (121 MHz, C6D6): 25.8 ppm; 1H-NMR (300 MHz, C6D6): 1.00-1.40 (m, 18H); 1.45-1.64 (m, 6H); 1.65-1.95 (m, 6H); 1.80 (s, 3H); 2.23 (s, 6H); 2.38 (s, 3H); 2.85 (s, 3H); 2.87 (s, 3H); 3.10-3.45 (m, 4H); 6.02 (s, 1H); 6.47 (s, 1H); 6.97 (s, 2H); 7.05-7.35 (m, 6H); 7.84 (s, 1H, RuCCH); 7.89 (m, 2H); 9.16 (m, 1H). Anal. calcd. for C54H69N2Cl2PRu: C, 68.34; H, 7.33; N, 2.95. Found: C, 68.61; H, 7.32; N, 2.68.
As the paragraph descriping shows that 173035-10-4 is playing an increasingly important role.
Reference£º
Patent; Puentener, Kurt; Scalone, Michelangelo; US2006/241156; (2006); A1;,
Chiral Catalysts
Chiral catalysts – SlideShare