Dichloromethane → (s)-2-Amino-n-(2-mercapto-ethyl)-3-methyl-butyramide
Reaktionsgleichung
C(OC(=O)[NH:7][C@H:8]([C:12](=[O:17])[NH:13][CH2:14][CH2:15][SH:16])[CH:9]([CH3:11])[CH3:10])(C)(C)C.C(Cl)Cl.C([SiH](CC)CC)C.FC(F)(F)C(O)=O>>[NH2:7][C@@H:8]([CH:9]([CH3:11])[CH3:10])[C:12]([NH:13][CH2:14][CH2:15][SH:16])=[O:17]Komponenten
5
Versuchsvorschrift
To 26g (222.0 mg, 0.80 mmol) in a 100 mL round-bottom flask purged with argon were added CH2Cl2 (2.00 mL, 31.2 mmol), triethylsilane (1.28 mL, 8.0 mmol), and trifluoroacetic acid (616 μL, 8.0 mmol). The reaction was stirred for 2.5 hours at room temperature, then concentrated in vacuo. The crude product was purified by silica gel chromatography using 10% methanolic CH2Cl2 as eluant. Clean fractions were combined, and concentrated in vacuo to afford 27g as a colorless oil.