Claims
- 1. An O-alkyl-benzofurandione dioxide of the formula (III):whereinA represents alkyl; and R1, R2, R3 and R4 are identical or different and each represents independently of the others hydrogen, halogen, cyano, nitro, in each case optionally halogen-substituted alkyl, alkoxy, alkylthio, alkylsulphinyl or alkylsulphonyl.
- 2. A ω-halogeno-2-hydroxy acetophenone oxime of the formula (IX): whereinX represents halogen; A represents alkyl; and R1, R2, R3 and R4 are identical or different and each represents independently of the others hydrogen, halogen, cyano, nitro, in each case optionally halogen-substituted alkyl, alkoxy, alkylthio, alkylsulphinyl or alkylsulphonyl.
Priority Claims (2)
Number |
Date |
Country |
Kind |
196 51 039 |
Dec 1996 |
DE |
|
197 06 396 |
Feb 1997 |
DE |
|
Parent Case Info
This application is a division of U.S. Ser. No. 09/528,228, which was filed on Mar. 17, 2000, and is now U.S. Pat. No. 6,335,454, which is, in turn a division of U.S. Ser. No. 09/186,708, which was filed on Nov. 5, 1998, and is now U.S. Pat. No. 6,093,837, which is, in turn, a division of U.S. Ser. No. 08/982,531, which was filed on Dec. 2, 1997, and is now U.S. Pat. No. 6,005,104.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
5679676 |
Kruger et al. |
Oct 1997 |
A |
Foreign Referenced Citations (2)
Number |
Date |
Country |
44 08 005 |
Feb 1995 |
DE |
196 02 095 |
Jul 1997 |
DE |
Non-Patent Literature Citations (3)
Entry |
H. Loth et al., Archiv Der Pharmazie, Bd. 306, No. 2, 1973, pp. 122-126. |
K. Venkateswara Rao et al., Proc. Indian Acad. Sci. Reactivity of 2-Hydroxy-w-Nitroacetophenones, Synthesis of 2-Oximinocoumaranones, Bd. 83A, Nr. 6, 1976, pp. 238-242. |
R. Stroemer et al., Berichte der Deutschen Chemischen Gesellschaft, Bd. 35, No. 9, 1902. |