Claims
- 1. A process for the preparation of a compound of the formula
- wherein R is hydrogen, halogen or lower alkyl, which comprises contacting a compound of the formula ##STR8## wherein R is as above in a suitable solvent in the presence of an acid acceptor selected from the group consisting of alkali metal carbonates and bicarbonates in the presence or absence of a promoter selected from the group consisting of sodium or potassium iodide.
- 2. The process of claim 1 wherein the solvent is a combination of a lower alkylalkanote and dipolar aprotic compound.
- 3. The process of claim 2 wherein the solvent combination in n-butylacetate-dimethylformamide.
- 4. The process of claim 1 wherein the acid acceptor is potassium carbonate.
Parent Case Info
This is a continuation of application Ser. No. 917,885 filed Oct. 14, 1986 now abandoned, which is a division of application Ser. No. 725,853 filed Apr. 22, 1985 now U.S. Pat. No. 4,654,336.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4107074 |
Effland et al. |
Aug 1978 |
|
4654336 |
Kosley, Jr. et al. |
Mar 1987 |
|
4723009 |
Kosley, Jr. et al. |
Feb 1988 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
046964 |
Mar 1982 |
JPX |
Non-Patent Literature Citations (1)
Entry |
March, ed., Advanced Organic Chemistry, 2nd ed. pp. 358 and 598-599. |
Divisions (1)
|
Number |
Date |
Country |
Parent |
725853 |
Apr 1985 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
917885 |
Oct 1986 |
|