Claims
- 1. A process for the production of a compound of the formula: ##SPC9##
- wherein Z is CHR.sup.2 ; R.sup.1 is hydrogen, a lower alkyl of 1 to 7 carbon atoms, a lower alkoxy of 1 to 7 carbon atoms, halogen, cyano, or trifluoromethyl; R.sup.2 is hydrogen, lower alkyl of 1 to 7 carbons, or aralkyl wherein the alkyl moiety contains from 1 to 7 carbons and the aryl is a monocyclic aromatic radical of 6 to 10 carbon atoms; and R.sup.4 is hydrogen or a nitro radical which comprises:
- A. treating a compound of the formula: ##SPC10##
- with phosgene to give a compound of the formula ##SPC11##
- B. reacting compound V with a compound of the formula: ##SPC12##
- to obtain a compound of the formula: ##SPC13##
- C. hydrolyzing Compound VII under acidic conditions.
Parent Case Info
This is a division of application Ser. No. 464,707 filed Apr. 26, 1974, now U.S. Pat. No. 3,878,198.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3769292 |
Zinnes et al. |
Oct 1973 |
|
3808205 |
Sircar et al. |
Apr 1974 |
|
Divisions (1)
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Number |
Date |
Country |
Parent |
464707 |
Apr 1975 |
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