Number | Name | Date | Kind |
---|---|---|---|
4115404 | Greenhalgh et al. | Sep 1978 | |
4122087 | Greenhalgh et al. | Oct 1978 | |
5183888 | Kenyon et al. | Feb 1993 | |
5189181 | Hall et al. | Feb 1993 | |
5215313 | Kenyon et al. | Jun 1993 | |
5413613 | Katsida et al. | May 1995 | |
5591871 | Suzuki et al. | Jan 1997 |
Number | Date | Country |
---|---|---|
551725 | Jul 1993 | EPX |
2103231 | Feb 1983 | GBX |
Entry |
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Greenhalgh et al, "The Synthesis of Quinodimethanes in the Benzodifuranone and Benzodipyrrolidone", Dyes and Pigments, vol. 1, pp. 103-120 (1980), No Month Available. |