Number | Date | Country | Kind |
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20814 A/83 | Apr 1983 | ITX |
Entry |
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Stanovnik & Tisler, Journal of Heterocyclic Chemistry, 1969, 6(3), 413-14. |
Zupan et al, Journal of Organic Chemistry, 37(19), pp. 2960-2963, (1972). |
March, "Advanced Organic Chemistry", 2nd Edition, pp. 353, 598, 806. |