Number | Date | Country | Kind |
---|---|---|---|
3317163 | May 1983 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3013066 | Alderson | Dec 1961 | |
3403108 | Leffin et al. | Sep 1968 | |
3450730 | Scheben et al. | Jun 1969 | |
3966799 | Hall et al. | Jun 1976 | |
4332966 | Isogai et al. | Jun 1982 |
Entry |
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Bull. of the Chem. Soc. of Japan, Band 46, S.528 Tetrahedron, vol. 28, S. 5769-5777 (1972). |