Claims
- 1. A compound of the formula ##STR25## wherein Ar is phenyl, C.sub.1 -C.sub.4 alkylphenyl, halophenyl, C.sub.1 -C.sub.4 alkoxyphenyl, naphthyl, thienyl, furyl, benzothienyl, or benzofuryl; and R.sub.3 is hydroxy, C.sub.1 -C.sub.4 alkoxy, chloro, bromo, trifluoroacetoxy, or --O--P(.dbd.O)X.sub.2 wherein X is chloro or bromo.
- 2. The compound of claim 1 wherein Ar is phenyl.
- 3. The compound of claim 2 wherein R.sub.3 is C.sub.1 -C.sub.4 alkoxy, chloro, or hydroxy.
- 4. The compound of claim 2 wherein R.sub.3 is ethoxy or t-butyloxy.
Parent Case Info
This application is a division of application Ser. No. 099,032 filed Sept. 21, 1987, a division of application Ser. No. 13,521, filed Feb. 11, 1987, now U.S. Pat. No. 4,734,495, which was a division of application Ser. No. 755,982 filed July 17, 1985, now U.S. Pat. No. 4,665,171.
US Referenced Citations (4)
Non-Patent Literature Citations (4)
Entry |
Evans, D. A., et al., "Asymmetric Alkylation Reactions of Chiral Imide Enolates", J. Am. Chem. Soc., 1982, 104, 1737-1739. |
Evans, D. A., et al., "Enantioselective Aldol Condensations. 2.", J. Am. Chem. Soc., 1981, 103, 2127-2129. |
Close, W. J., "Anticonvulsant Drugs. IV. Some 2-Oxazolidones", J. Am. Chem. Soc., 1951, 73, 95. |
Pirkle, W. H., et al., J. Org. Chem., vol. 48, No. 15 (1983), pp. 2520-2527. |
Divisions (3)
|
Number |
Date |
Country |
Parent |
99032 |
Sep 1987 |
|
Parent |
13521 |
Feb 1987 |
|
Parent |
755982 |
Jul 1985 |
|