Potassium benzyloxycarbonylcyanamide

Carbamic acid, N-cyano-, phenylmethyl ester, potassium salt;  (50909-46-1)
 Potassium benzyloxycarbonylcyanamide

R_f = 0.71 (ethyl acetate). mp 219-221 °C.  

¹H NMR (DMSO-d₆, 400 MHz) δ: 4.86 (s, 2 H), 7.24-7.35 (m, 5 H);  

¹³C NMR (DMSO-d₆, 100 MHz) δ: 65.2, 122.1, 127.1, 127.3, 128.1, 138.7, 162.5;

IR (powder) ν 3060, 3030 (both w), 2189 (s) 2143 (m), 1622 (s), 1398, 1342, 1306, 1178, 1147 (all m), 779, 732, 697 (all s) cm^-1.

HRMS (ESI-) Calculated for C₉H₇N₂O₂ [M-] m/z 175.0513, obsd 175.0510.

Anal calcd for C₉H₇KN₂O₂: C, 50.45; H, 3.29; N, 13.07. Found C, 50.56; H, 3.43; N, 13.22.

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