Number | Date | Country | Kind |
---|---|---|---|
49-147908 | Dec 1974 | JA | |
50-32739 | Mar 1975 | JA | |
50-60519 | May 1975 | JA | |
50-107822 | Sep 1975 | JA |
Number | Name | Date | Kind |
---|---|---|---|
4002629 | DeLarge et al. | Jan 1977 |
Entry |
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Roberts et al., Basic Principles of Organic Chemistry, Benjamin Pub. pp. 799-801, (1965). |