Number | Name | Date | Kind |
---|---|---|---|
2500029 | Hagemeyer | Mar 1950 | A |
2521897 | Caldwell | Sep 1950 | A |
2627477 | Downey | Feb 1953 | A |
3342806 | Ray-Chaudhuri | Sep 1967 | A |
3361585 | Armour et al. | Jan 1968 | A |
3931069 | Lundin | Jan 1976 | A |
4708821 | Shimokawa et al. | Nov 1987 | A |
5292877 | Edgar et al. | Mar 1994 | A |
5360843 | Edgar et al. | Nov 1994 | A |
5565037 | Sobotta et al. | Oct 1996 | A |
5770726 | Kuo et al. | Jun 1998 | A |
Number | Date | Country |
---|---|---|
43 29 293 | Mar 1995 | DE |
9303063 | Feb 1993 | WO |
9961479 | Dec 1999 | WO |
WO 0185800 | Nov 2001 | WO |
Entry |
---|
Morrison & Boyd, Organic Chemistry 4th Edition, Allyn and Bacon Inc., Massachusetts, p33-34. 1983. |
K. Faber, S. Riva, Synthesis, Oct. 1992, 895-910. |
G.E. Jeromin, V. Welsch, Tetrahedron Lett., 1995, vol. 36, No. 37, 6663-64. |
K. Suginaka, Y. Hayashi, Y. Yamamoto, Tetrahedron: Assymetry, 1996, vol. 7, No. 4, 1153-58. |
U.S. patent application Ser. No. 09/564,575, Cheng et al., filed May 5, 2000. |
U.S. patent application Ser. No. 09/791,450, Qiao et al., filed Feb. 23, 2001. |