Number | Date | Country | Kind |
---|---|---|---|
63-276903 | Nov 1988 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2891981 | Gainer et al. | Jun 1959 | |
3516964 | Patterson | Jun 1970 | |
3940426 | Itatani et al. | Feb 1976 | |
4370487 | Meyer et al. | Jan 1983 | |
4864027 | Shubert et al. | Sep 1989 |
Number | Date | Country |
---|---|---|
981824 | Jan 1965 | GBX |
Entry |
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Houben-Weyl; edition 4, 1980; vol. XIII/5, pp. 34, 45-50, 132-133, 140-141. |
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Pratt et al, J. Org. Chem., vol. 38, No. 25, 1973, p. 4271. |