Piperazine → Piperazinium N,N'-diacetyl-L-cystinate

関与物質

反応手順

To N,N'-diacetyl-L-cystine (4.60 mmole, 1.49 g) dissolved in 5 mL of water was added piperazine (4.60 mmole, 0.90 g). To the solution was added enough isopropanole to cause formation of an oil, which slowly solidifies. The salt was isolated and dried. Physical data: Mp >170° C. (dec.) 1H-NMR (D2O) δ: 2.05 [6H,s,CH3 ], 2.96 [2H,dd,CH2S], 3.26 [2H,dd,CH2S], 3.42 [8H,s,CH2 (2,3,5,6)], 4.49 [2H,dd,CHN]

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