Number | Date | Country | Kind |
---|---|---|---|
2817496 | Apr 1978 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
1968552 | Bond et al. | Jul 1934 | |
2918497 | Walter | Dec 1959 |
Number | Date | Country |
---|---|---|
1294360 | May 1969 | DEX |
Entry |
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Houben-Weyl, Methoden der Organischen Chemie, vol. 7/1. |
Ullmanns Encyklopadie der technischen Chemie, 4th ed., vol. 8, pp. 344-350 and 436. |