Number | Date | Country | Kind |
---|---|---|---|
3606478 | Feb 1986 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3226428 | Vail et al. | Dec 1965 | |
3341568 | Ham | Sep 1967 | |
3391181 | Scheuerl | Jul 1968 | |
3950285 | Wolgemuth | Apr 1976 | |
4118500 | Mitzlaff et al. | Oct 1978 | |
4430262 | Engels et al. | Feb 1984 | |
4661217 | Degner et al. | Apr 1987 |
Entry |
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Tetrahedron 32 (1976), 2815-2206. |
Journal of Organic Chemistry 48 (1983) 3338-3339. |