Number | Date | Country | Kind |
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2742034 | Sep 1977 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3573281 | Nehring | Mar 1971 | |
3953444 | Singh et al. | Apr 1976 |
Entry |
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Nelsen et al., J. Amer. Chem. Soc., vol. 96, pp. 1788 to 1793 (1974). |
Rieber et al., J. Amer. Chem. Soc., vol. 91, pp. 5668 and 5669 (1969). |