Number | Date | Country | Kind |
---|---|---|---|
3335456 | Sep 1983 | DEX | |
3408154 | Mar 1984 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4315766 | Hamprecht et al. | Feb 1982 | |
4359428 | Jacobs et al. | Nov 1982 |
Entry |
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Houben-Weyl, Methoden der Organischen Chemie, 4th Edition, vol. V/3, pp. 160, et seq. |
Finger et al, J. Amer. Chem. Soc., 81 (1959), 2674. |