Number | Name | Date | Kind |
---|---|---|---|
3873940 | Drephage | Mar 1975 | |
3932446 | Grychtol | Jan 1976 | |
4278751 | Specht et al. | Jul 1981 | |
4668803 | Berman et al. | Sep 1987 | |
4736032 | Fox et al. | Apr 1988 | |
4743528 | Farid et al. | May 1988 | |
4743529 | Farid et al. | May 1988 | |
4743530 | Farid et al. | May 1988 | |
4743531 | Farid et al. | May 1988 |
Entry |
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Suu et al., "Sur Quela. Prop. Formyl-2 benzoforan", Bull. Soc. Chim. France, pp. 1825-1827 (1962). |