反応 #3760460
関連文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US08101636B2
反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
実験手順: The N′,N″-di-BOCguanidine (0.45 g, 0.60 mmol) was dissolvedin CH2Cl2 (10 mL), diluted with dry EtOH (15 mL) and the chilled solution was saturated with dry HCl. The reaction was then kept stirring at room temperature for 3 days (drying tube), when by the product started forming a precipitate over time. After evaporating the solvent to dryness, the residue was washed with ether multiple times and was dried under vacuum at 50-60° C. over night to give whitish yellow solid of the bis-guanidine dihydrochloride; mp>300° C. 1H NMR (DMSO-d6): δ 7.85 (dd, J=1.5, 8.4 Hz, 4H), 7.92 (d, J=1.2 Hz, 4H), 8.00 (dd, J=1.5, 8.4 Hz, 4H ), 9.09 (br s, 4H), 11.25 (br s, 2H). 13C NMR (DMSO-d6): δ 155.98, 138.35, 137.32, 135.00, 127.79, 127.22, 124.79. MS (ESI) m/e (rel. int.): 344 (M+, 6), 173 (100). Anal. Calc. for C20H20N6-2.0HCl-1.0H2O-0.2C2H5OH: C %, 55.11; H %, 5.71; N %, 18.90. Found C %, 55.39; H %, 5.50; N %, 18.71. (drying tube), when by the product started forming a precipitate over time After evaporating the solvent to dryness the residue was washed with ether multiple times was dried under vacuum at 50-60° C. over night
ソース ID: ord-58621fac3ff84331a967aac9e86f46fb