Number | Date | Country | Kind |
---|---|---|---|
1702/74 | Feb 1974 | CH |
Number | Name | Date | Kind |
---|---|---|---|
1929252 | Morris | Oct 1933 | |
2562065 | Sawyer et al. | Jul 1951 | |
3637320 | Wakefield et al. | Jan 1972 | |
3682789 | Beutler et al. | Aug 1972 | |
3771976 | Wakefield | Nov 1973 | |
3783007 | Bloom et al. | Jan 1974 | |
3901678 | Fischer | Aug 1975 |
Number | Date | Country |
---|---|---|
345,642 | Aug 1904 | FR |
2,180,463 | Jan 1974 | FR |
1,307,018 | Feb 1973 | UK |
1,251,054 | Oct 1971 | UK |
Entry |
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Caillet et al.; C.R. Acad. Sc. Paris, 270, p. 1867, June 1970. |
Karrer, P; Organic Chemistry, New York, 1938, pp. 210-212, 748-749, and 762-764. |