References
- Petersen , H. J. , Kærgaard Nielsen , C. and Arrigoni-Martelli , E. 1978 . J. Med. Chem. , 21 : 773
- Hansen , E. T. and Petersen , H. J. 1984 . Synth. Commun. , 14 in press.
- Alternatively, the formation of (4) from (2) can be rationalized as the result of an extensive interchange reaction between (2) and DCC4, giving rise to DCTU and N-alkyl-N'-4-pyridylcarbodiimide, which adds to cyanamide1
- Wragg , R. T. 197O . Tetrahedron Lett. , : 3931
- In an earlier preparation attempt (5) was obtained in less than 50% yield by heating S-methyl 4-pyridyldithiocarbamate2 with two equivalents of sodium cyanamide to 70°C in dimethylformamide