Number | Name | Date | Kind |
---|---|---|---|
3894034 | Gassman et al. | Jul 1975 | |
3954797 | Gassman et al. | May 1976 | |
3960926 | Gassman et al. | Jun 1976 | |
3985756 | Gassman et al. | Oct 1976 | |
4035375 | Gassman et al. | Jul 1977 | |
4209464 | Steinman et al. | Jun 1980 |
Entry |
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Claus, "Tetrahedron Letters", No. 32, pp. 3607-3610, 1968. |
Gassman, "Tetrahedron Letters", No. 6, pp. 497-500, 1972. |
Johnson, "Tetrahedron Letters", p. 501, (1972). |
Vilsmaier, "Tetrahedron Letters", p. 625 (1972). |
Claus & Vilsmaier, "Tetrahedron Letters", No. 31, p. 505, (1975). |
Claus et al., "Phosphorus and Sulfur, No. 1, pp. 11, 18 (1976) and references cited therein. |