29841-69-8, (1S,2S)-(-)-1,2-Diphenylethylenediamine is a catalyst-ligand compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
0.440 g (2.07 mmol) of (S,S)-DPEN (MW: 212.3) was introduced into a 100-mL three-necked flask and subjected to argon-gas replacement. 20 mL of dehydrated methylene chloride and 0.303 mL (2.17 mmol) of triethylamine were added and cooled to 0 C. To this solution, a solution consisting of 0.520 g (2.07 mmol) of 3′,5′-dimethoxyphenyl methanesulfonyl chloride (MW: 250.70) and 5 mL of dehydrated methylene chloride was slowly added dropwise, and stirred at 0 C. for 3 hr. This solution was washed twice with water, the solvent in the organic layer was distilled away, and dried under reduced pressure to give a crude product. The crude product was purified by silica-gel column chromatography (silica gel 60N, n-hexane:AcOEt=1:1, then AcOEt 100%) to give 0.51 g of (S,S)-(3′,5′-dimethoxyphenyl)methane-SO2DPEN (58% yield). 1H NMR (400 MHz, CDCl3, rt, delta/ppm): 3.59 (d, J=13.7 Hz, 1H, SO2C2C6H3), 3.64 (d, J=13.7 Hz, 1H, SO2C2C6H3), 3.71 (s, 6H, (OC3)2), 4.23 (d, J=6.4 Hz, 1H, CNH2), 4.59 (d, J=6.4 Hz, 1H, CNHSO2), 6.29 (d, J=2.3 Hz, 2H, C62H (OCH3)2), 6.36 (d, J=2.3 Hz, 1H, C6H2(OCH3)2), 7.18-7.40 (m, 10H, aromatic proton)., 29841-69-8
As the paragraph descriping shows that 29841-69-8 is playing an increasingly important role.
Reference£º
Patent; Kanto Kagaku Kabushiki Kaisha; US2010/261924; (2010); A1;,
Metal catalyst and ligand design
Ligand Template Strategies for Catalyst Encapsulation – NCBI