Claims
- 1. A compound having the formula: ##STR8## wherein each of R.sub.1, R.sub.2 and R.sub.3 is selected from the group consisting of hydrogen, alkyl having from 1 to 4 carbon atoms, alkoxy having from 1 to 4 carbon atoms, chloro, bromo, fluoro, hydroxy, methylthio and methylsulfinyl, and R.sub.2 and R.sub.3 when taken together are selected from the group consisting of 1,3-butadienyl and alkylenedioxy having from 1 to 2 carbon atoms.
- 2. A compound according to claim 1 wherein R.sub.1 is methyl and each of R.sub.2 and R.sub.3 is hydrogen.
- 3. A compound according to claim 1 wherein R.sub.3 is hydrogen and each of R.sub.1 and R.sub.2 is alkoxy.
- 4. The compound according to claim 3 wherein R.sub.1 is 6-methoxy and R.sub.3 is 7-methoxy.
- 5. The compound according to claim 1 wherein each of R.sub.1, R.sub.2 and R.sub.3 is hydrogen.
- 6. A compound according to claim 1 wherein each of R.sub.1 and R.sub.3 is hydrogen and R.sub.2 is fluoro.
CROSS REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of U.S. application Ser. No. 759,295, filed Jan. 14, 1977 and now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3647802 |
Carney |
Mar 1972 |
|
Non-Patent Literature Citations (1)
Entry |
Coppola, et al., "J. Org. Chem.," vol. 41, 1976, pp. 825-831. |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
759295 |
Jan 1977 |
|