Number | Date | Country | Kind |
---|---|---|---|
41 33 676.3 | Oct 1991 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3230268 | Kobayashi | Jan 1966 | |
4046656 | Davis et al. | Sep 1977 | |
4439620 | Klauke et al. | Mar 1984 | |
4950813 | Doscher et al. | Aug 1990 |
Number | Date | Country |
---|---|---|
0306804 | Aug 1988 | EPX |
3039884 | Oct 1980 | DEX |
3142856 | Oct 1981 | DEX |
43-8254 | Mar 1968 | JPX |
2240031 | Sep 1990 | JPX |
Entry |
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Houben-Weyl, Methoden der Org. Chemie, V/III, pp. 716, 1962. |
German Patent Specification 234,290, Mar. 27, 1909, p. 116. |
J. Chem. Soc. 121, Aug. 8, 1922, pp. 2212-2215. |