Claims
- 1. A compound of the formula ##STR16## in which R is C.sub.1 -C.sub.4 alkyl, allyl or cyclopropylmethyl; R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl, allyl, cyclopropylmethyl or phenyl (C.sub.1 -C.sub.4 alkyl);
- X is --CH.sub.2 --; and
- R.sub.a is hydrogen, C.sub.1 -C.sub.4 alkyl, halogen, hydroxy, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, amino, cyano or phenyl.
- 2. Compound of claim 1, in which R and R.sub.1 are both C.sub.1 -C.sub.4 alkyl.
- 3. Compound of claim 2, in which R.sub.a is hydrogen.
- 4. Compound of claim 3, which compound is 2-di-n-propylamino-8-[1-oxo-3- (dimethylamino) -prop-2-enyl ]-1,2,3,4-tetrahydronaphthalene.
Parent Case Info
This application is a division, of application Ser. No. 07/653,583, filed Feb. 8, 1991 pending.
US Referenced Citations (5)
Foreign Referenced Citations (1)
Number |
Date |
Country |
279150 |
Aug 1899 |
EPX |
Divisions (1)
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Number |
Date |
Country |
Parent |
653583 |
Feb 1991 |
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