Claims
- 1. A compound of the formula VIIa ##STR2## wherein: Y.sup.1 is selected from hydrogen, (1-4C)alkyl, (1-4C)alkoxy, halogeno, (1-4C)alkanoyl, trifluoromethyl, cyano and nitro;
- Y.sup.2 is selected from hydrogen, (1-4C)alkyl, (1-4C)alkoxy, halogeno, trifluoromethyl, cyano and nitro;
- P.sup.1 is an electron-deficient phenyl group or is a pyridyl or pyrimidyl group; and
- LG is a leaving group.
- 2. A compound of the formula VIIa as claimed in claim 1 wherein P.sup.1 is 4-nitrophenyl.
Priority Claims (3)
Number |
Date |
Country |
Kind |
9101026 |
Jan 1991 |
GBX |
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9106876 |
Apr 1991 |
GBX |
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9121726 |
Oct 1991 |
GBX |
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Parent Case Info
This is a divisional of application Ser. No. 07/822,395, filed on Jan. 17, 1992, now U.S. Pat. No. 5,294,716.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
5252753 |
Russell et al. |
Oct 1993 |
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5294716 |
Thomas et al. |
Mar 1994 |
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Foreign Referenced Citations (4)
Number |
Date |
Country |
253310 |
Jan 1988 |
EPX |
291969 |
Nov 1988 |
EPX |
412848 |
Feb 1991 |
EPX |
453210 |
Oct 1991 |
EPX |
Non-Patent Literature Citations (3)
Entry |
K. Kamala, et al., Bull. Chem. Soc. JPN. (1988) 61, No. 10, 3791-3793: "Synthesis of 2-Aryl[1,2,4]triazolo[1,5-a]pyrimidines.". |
P. G. Houghton, et al., J. Chem. Soc. Perkin Trans I (1985), 1471-1479: "Intramolecular Reaction Between Nitro and Carbodi-imide Groups; A New Synthesis of 2-Arylbenzotriazoles.". |
Bianchetti, "Distacco per Idrazinolisi . . . ", Gazz. Chim. Ital., vol. 94, p. 340, 1968, English abstract only. |
Divisions (1)
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Number |
Date |
Country |
Parent |
822395 |
Jan 1992 |
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