Number | Date | Country | Kind |
---|---|---|---|
3737536 | Nov 1987 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4556706 | Hegar et al. | Dec 1985 |
Number | Date | Country |
---|---|---|
3434818 | Apr 1985 | DEX |
2295090 | Jul 1976 | FRX |
2172896 | Oct 1986 | GBX |
Entry |
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Houben-Weyl, Methoden der Organischen Chemie, vol. 10/2, 1967, pp. 487 and 488. |