Number | Date | Country | Kind |
---|---|---|---|
3134129 | Aug 1981 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3595302 | Asinger | May 1976 | |
3808268 | Rambacher et al. | Apr 1974 | |
4224457 | Iwao et al. | Sep 1980 |
Number | Date | Country |
---|---|---|
2138121 | Feb 1973 | DEX |
2147812 | Apr 1973 | FRX |
Entry |
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Nagai, Liebigs Ann. Chem., vol. 470, pp. 157-182 (1929). |
Armstrong, J. Amer. Chem. vol. 16, pp. 749-753 (1971). |