Number | Date | Country | Kind |
---|---|---|---|
3013888 | Apr 1980 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
1923419 | Britton et al. | Aug 1981 | |
1934675 | Mills | Nov 1933 | |
2123857 | Wibaut et al. | Jul 1938 | |
2843637 | Clarke et al. | Jul 1958 |
Number | Date | Country |
---|---|---|
1618517 | Jun 1967 | DEX |
Entry |
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Houben-Weyl, "Methoden der Organischen Chemie", vol. 5, No. 3, pp. 656-658 (1952). |
Erykalov et al., "Chemical Abstracts", vol. 63, p. 9770 (1965). |
Erykalov et al, "Chemical Abstracts", vol. 59, p. 418 (1963). |