Number | Date | Country | Kind |
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22769 A/89 | Dec 1989 | ITX |
This is a division of application Ser. No. 07/626,763, filed Dec. 13, 1990 now U.S. Pat. No. 5,109,134.
Number | Name | Date | Kind |
---|---|---|---|
2888459 | Jacob et al. | May 1959 | |
3136762 | Mayer et al. | Jun 1964 | |
4451461 | Dubroeucq et al. | Jan 1983 | |
5089613 | Meneghin | Feb 1992 |
Number | Date | Country |
---|---|---|
0070753 | Jan 1983 | EPX |
768454 | Feb 1957 | GBX |
1480553 | Jul 1977 | GBX |
Entry |
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Heterocycles, vol. 26, No. 1, 1987, Saraf et al., "Recent Advances in the Synthesis of Phenothiaines", pp. 239-273. |
Knoevenagel Berichte, 1909, pp. 3315-3322. |
Chemical Abstracts, vol. 77, No. 19661c (1972), Wanzlick, "3-Mercapto- and 3-(alkylthio)phenothiazines" and DE 2,047,078. |
Encyclopedia of Chemical Technology 3rd edition, Kirk-Othmer, vol. 11, (1980), p. 287. |
"Reductions in Organic Chemistry," 1986, Hudlicky, p. 90. |
Number | Date | Country | |
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Parent | 626763 | Dec 1990 |