Number | Date | Country | Kind |
---|---|---|---|
12960/73 | Sep 1973 | CH |
This is a continuation of application Ser. No. 501,392 filed on Aug. 28, 1974, now abandoned.
Number | Name | Date | Kind |
---|---|---|---|
2705713 | Kendall et al. | Apr 1955 | |
3666758 | Dorlars et al. | May 1972 |
Number | Date | Country |
---|---|---|
1,168,437 | Apr 1964 | DT |
Entry |
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Jagerspacher, Ber. Dent. Chem., vol. 28, pp. 1283-1287, (1895). |
Benson, Chemical Reviews, vol. 46, pp. 20, 36-38, 52 (1950). |
Elderfield, Heterocyclic Compounds, vol. 7, (New York, 1961), p. 413. |
Number | Date | Country | |
---|---|---|---|
Parent | 501392 | Aug 1974 |