Number | Date | Country | Kind |
---|---|---|---|
56-134778 | Aug 1981 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2921940 | Ramsden | Jan 1960 | |
3856867 | Ramsden | Dec 1974 | |
4251543 | Amano et al. | Feb 1981 |
Number | Date | Country |
---|---|---|
43-27214 | Nov 1968 | JPX |
50-157306 | Dec 1975 | JPX |
54-154759 | Dec 1979 | JPX |
Entry |
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Jones, "J. Organic Chemistry", vol. 35, No. 6, pp. 1777-1781, (1970). |