Number | Name | Date | Kind |
---|---|---|---|
3787477 | Mathews | Jan 1974 | |
3835176 | Matsuo et al. | Sep 1974 |
Number | Date | Country |
---|---|---|
2,231,312 | Jan 1973 | DE |
Entry |
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Michael et al., Ber., vol. 25, pp. 1678-1684, (1892). |
Francis et al., J. Chem. Soc., 95, pp. 1403-1409, (1909). |
Fisher et al., J. Org. Chem., 24, pp. 1650-1654, (1959). |