Number | Date | Country | Kind |
---|---|---|---|
2722221 | May 1977 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3153087 | Kramer et al. | Oct 1964 | |
3351631 | Szawlowski et al. | Nov 1967 |
Entry |
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Miles et al., Journal of Organic Chemistry, vol. 30 (1965), pp. 1007-1011. |
Dingwall et al., Chemical Communications, 1969, p. 466. |