反应 #3242208
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US05563253
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: N-1-trifluoroacetylhexanediamine, (CF3CONH(CH2)6NH2) is prepared by adding ethyltrifluoroacetate (1.2 ml, 10 mmol) dropwise over one hour to a stirred mixture of hexanediamine (1.16 g; 10 mmol) and triethylamine (1 ml; 7 mmol) in 20 ml methanol. The solution is stirred overnight. After removal of solvents, the reaction mixture is flash chromatographed on silica using 0-25% methanol in dichloromethane. The fractions containing the desired product are pooled and concentrated to give a colorless powder (1.1 gm, yield-42.6%); melting point 52 C°; 1H NMR (CDCl3, d, TMS=)0.00) 7.1-7.2 (m, 3H, NH2, NH) 3.2-3.3 (m, 2H, CO-NH-CH2), 2.8-2.9 (m 2H, CH2 -NH2) 1.2-1.6 (m, 8H, --CH--(CH2)2 --CH2 --). After removal of solvents chromatographed on silica using 0-25% methanol in dichloromethane The fractions containing the desired product concentrated
来源 ID: ord-8da15073940a4b968f40eca6c5757929