Number | Date | Country | Kind |
---|---|---|---|
2903506 | Jan 1979 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2370571 | Muskat et al. | Feb 1945 | |
2834799 | Sowa | May 1958 | |
3642858 | Frevel et al. | Feb 1972 |
Entry |
---|
P. Ball et al., Angewandte Chemie (1980), 742-743. |
A. Paquin, Z. Naturforschung 1, 518-523 (1946), The Conversion of Urea with Alcohols. |
Wagner and Zook, Synthetic Organic Chemistry (1953), p. 647. |
Smith, Open-Chain Nitrogen Compounds, vol. 1, p. 261 (1965), Benjamin, Inc. N.Y. |