Number | Date | Country | Kind |
---|---|---|---|
6158/75 | May 1975 | CH |
Number | Name | Date | Kind |
---|---|---|---|
1778784 | Rath | Oct 1930 | |
3355456 | Sexton | Nov 1967 | |
3579528 | Haszeldine et al. | May 1971 | |
3849429 | Boudakian | Nov 1974 |
Number | Date | Country |
---|---|---|
2,245,363 | Mar 1973 | DT |
Entry |
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Klingsberg, Pyridine and Derivatives, Part II, pp. 334 to 337, Interscience Publishers, Inc. NY (1961). |
Klingsberg, Pyridine and Derivatives, vol. 3, pp. 571 to 576, Interscience Publishers (1962). |
Yamamoto et al., Chemical Abstracts, vol. 46, cols. 8108 to 8109 (1952). |