Number | Date | Country | Kind |
---|---|---|---|
79 11284 | May 1979 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
2479918 | Fincke et al. | Aug 1949 | |
2726227 | Leistner et al. | Dec 1955 | |
2726254 | Leistner et al. | Dec 1955 | |
2888435 | Wallace | May 1959 | |
4177187 | Bohen | Dec 1979 |
Number | Date | Country |
---|---|---|
1008908 | Mar 1966 | DEX |
2538409 | Dec 1975 | DEX |
Entry |
---|
J. American Chem. Soc. 89, 2495 and 7017, 1967, C. J. Pedersen. |