Claims
- 1. 5,5-bis-(alkoxycarbonyl)-3-alkoxy-2E-pentenoic acid ester of the formula: ##STR6## wherein R is the same or different and are alkyl having 1 to 4 C atoms.
- 2. 5,5-bis-(ethoxycarbonyl)-3-methoxy-2E-pentenoic acid methyl ester.
- 3. 5,5-bis-(methoxycarbonyl)-3-methoxy-2E-pentenoic acid methyl ester.
- 4. 5,5-bis-(ethoxycarbonyl)-3-ethoxy-2E-pentenoic acid ethyl ester.
Priority Claims (1)
Number |
Date |
Country |
Kind |
00041/89 |
Jan 1989 |
CHX |
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Parent Case Info
This is a divisional of application Ser. No. 460,658, filed on Jan. 3, 1990, of Rudolf FUCHS et al., for PROCESS FOR THE PRODUCTION OF 1,3-CYCLOPENTANEDIONE.
US Referenced Citations (10)
Foreign Referenced Citations (4)
Number |
Date |
Country |
13844 |
Jun 1980 |
EPX |
378073 |
Jul 1990 |
EPX |
1230022 |
Oct 1967 |
DEX |
1404429 |
Sep 1965 |
FRX |
Non-Patent Literature Citations (4)
Entry |
Tarnchompou B. et al., Tetrahedron Lett. 28(52) 6671-6674, 1987. |
Chemical Abstracts, vol. 107, paragraph 197620j (1987). |
Aldrichimica Acta, vol. 10, No. 1, (1977), p. 19. |
Chemische Berichte, vol. 111, (1978), pp. 2462-2464, "1,3-Cyclopentanedione--a Prized Reagent", C. Lick and K. Schank. |
Divisions (1)
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Number |
Date |
Country |
Parent |
460658 |
Jan 1990 |
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