Product Name

  • Name

    Diethyl 1,1-cyclopropanedicarboxylate

  • EINECS 216-321-6
  • CAS No. 1559-02-0
  • Article Data62
  • CAS DataBase
  • Density 1.164 g/cm3
  • Solubility
  • Melting Point 134-136 °C(lit.)
  • Formula C9H14O4
  • Boiling Point 219.2 °C at 760 mmHg
  • Molecular Weight 186.208
  • Flash Point 86.7 °C
  • Transport Information
  • Appearance clear colorless liquid
  • Safety 26-36-24/25-23
  • Risk Codes 36/37/38
  • Molecular Structure Molecular Structure of 1559-02-0 (Diethyl 1,1-cyclopropanedicarboxylate)
  • Hazard Symbols IrritantXi
  • Synonyms 1,1-Cyclopropanedicarboxylicacid, diethyl ester (6CI,7CI,8CI,9CI);1,1-Bis(ethoxycarbonyl)cyclopropane;1,1-Dicarbethoxycyclopropane;Ethyl1,1-cyclopropanedicarboxylate;NSC 21376;
  • PSA 52.60000
  • LogP 0.89280

Synthetic route

ethylene dibromide
106-93-4

ethylene dibromide

diethyl malonate
105-53-3

diethyl malonate

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
With tetrabutylammomium bromide; potassium carbonate In N,N-dimethyl-formamide at 20℃; for 12h;98%
With potassium carbonate; [bmim]Br In N,N-dimethyl-formamide at 20 - 70℃;94%
With tetra(n-butyl)ammonium hydrogensulfate; potassium carbonate In dimethyl sulfoxide at 20℃; for 24h; Alkylation; Cyclization;92%
diethyl malonate
105-53-3

diethyl malonate

diphenyl(vinyl)sulfonium trifluoromethanesulfonate

diphenyl(vinyl)sulfonium trifluoromethanesulfonate

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
With 1,8-diazabicyclo[5.4.0]undec-7-ene In dimethyl sulfoxide at 21℃; for 12h;97%
1,2-dichloro-ethane
107-06-2

1,2-dichloro-ethane

diethyl malonate
105-53-3

diethyl malonate

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
With potassium carbonate; sodium iodide In N,N-dimethyl-formamide Reflux;93%
With water; potassium carbonate; tetrabutylammomium bromide In benzene at 80℃; for 12h;85%
With tetrabutylammomium bromide; potassium carbonate at 120℃; Concentration; Temperature;83.47%
potassium carbonate
584-08-7

potassium carbonate

ethylene dibromide
106-93-4

ethylene dibromide

diethyl malonate
105-53-3

diethyl malonate

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
tetra-(n-butyl)ammonium iodide In N,N-dimethyl-formamide88.7%
1,2-Diiodoethane
624-73-7

1,2-Diiodoethane

diethyl malonate
105-53-3

diethyl malonate

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
With tetrabutylammomium bromide; potassium hydrogencarbonate Reflux;80.77%
S-Ethenyl-S-(4-methylphenyl)-N-tolylsulfilimine
64648-13-1, 81115-85-7, 81115-90-4

S-Ethenyl-S-(4-methylphenyl)-N-tolylsulfilimine

diethyl malonate
105-53-3

diethyl malonate

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
With sodium hydride In tetrahydrofuran at 20℃; for 24h; Addition;76%
S-ethenyl-S-phenyl-N-(toluene-4-sulfonyl)sulfilimine
56692-06-9

S-ethenyl-S-phenyl-N-(toluene-4-sulfonyl)sulfilimine

diethyl malonate
105-53-3

diethyl malonate

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
With sodium hydride In tetrahydrofuran at 20℃; for 24h; Addition;35%
ethylene dibromide
106-93-4

ethylene dibromide

diethyl malonate
105-53-3

diethyl malonate

A

oxirane
75-21-8

oxirane

B

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

C

ethylene glycol
107-21-1

ethylene glycol

Conditions
ConditionsYield
With tetraethylammonium perchlorate In N,N-dimethyl-formamide electrolysis;A n/a
B 13%
C n/a
pyridine
110-86-1

pyridine

diethyl 2-(2-bromoethyl)-malonate
18721-64-7

diethyl 2-(2-bromoethyl)-malonate

acetyl chloride
75-36-5

acetyl chloride

toluene
108-88-3

toluene

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

diethyl 2-(2-bromoethyl)-malonate
18721-64-7

diethyl 2-(2-bromoethyl)-malonate

sodium ethanolate
141-52-6

sodium ethanolate

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

cyclopropane-1,1-dicarboxylic acid
598-10-7

cyclopropane-1,1-dicarboxylic acid

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
With sulfuric acid; benzene
1-carbethoxy-1-cyanocyclopropane
1558-81-2

1-carbethoxy-1-cyanocyclopropane

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
With hydrogenchloride; ethanol
sodium diethylmalonate
996-82-7

sodium diethylmalonate

1,2-dichloro-ethane
107-06-2

1,2-dichloro-ethane

A

butane-1,1,4,4-tetracarboxylic acid
4435-38-5

butane-1,1,4,4-tetracarboxylic acid

B

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
entsteht der Tetraaethylester; man isoliert den Ester durch fraktionierte Destillation im Vakuum;
sodium diethylmalonate
996-82-7

sodium diethylmalonate

1,2-dichloro-ethane
107-06-2

1,2-dichloro-ethane

A

butane-1,1,4,4-tetracarboxylic acid tetraethyl ester
4450-43-5

butane-1,1,4,4-tetracarboxylic acid tetraethyl ester

B

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
man isoliert durch fraktionierte Destillation im Vakuum;
diethyl acetylmalonate
570-08-1

diethyl acetylmalonate

sodium ethanolate
141-52-6

sodium ethanolate

ethylene dibromide
106-93-4

ethylene dibromide

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

diethyl acetylmalonate
570-08-1

diethyl acetylmalonate

ethylene dibromide
106-93-4

ethylene dibromide

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
With sodium ethanolate
diethyl 2-chloroethylmalonate
18719-42-1

diethyl 2-chloroethylmalonate

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
With potassium tert-butylate In tert-butyl alcohol at 25℃; Rate constant; other reaction partners, other solvents;
With sodium ethanolate In ethanol
With potassium carbonate In ethanol Heating;
diethyl 2-(2-bromoethyl)-malonate
18721-64-7

diethyl 2-(2-bromoethyl)-malonate

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
With potassium tert-butylate In tert-butyl alcohol at 25℃; Rate constant; other reaction partners, other solvents;
With sodium ethanolate In ethanol
(2-Dimethylsulfonio-ethyl)-malonsaeure-diethylester-Kation

(2-Dimethylsulfonio-ethyl)-malonsaeure-diethylester-Kation

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
With sodium ethanolate In ethanol
vinyl isocyanide
14668-82-7

vinyl isocyanide

diethyl malonate
105-53-3

diethyl malonate

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
With copper(I) oxide In benzene at 80℃; for 7h;
ethene
74-85-1

ethene

diethyl malonate
105-53-3

diethyl malonate

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
With sulfuryl dichloride; Dimethyldisulphide; sodium ethanolate; dimethyl sulfate Yield given. Multistep reaction;
diethyl ether
60-29-7

diethyl ether

diethyl 2-(2-bromoethyl)-malonate
18721-64-7

diethyl 2-(2-bromoethyl)-malonate

acetyl chloride
75-36-5

acetyl chloride

sodium

sodium

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

diethyl ether
60-29-7

diethyl ether

diethyl 2-(2-bromoethyl)-malonate
18721-64-7

diethyl 2-(2-bromoethyl)-malonate

ammonia
7664-41-7

ammonia

A

Cyclopropan-1-carbonsaeureethylester-1-carbonsaeureamid
6914-75-6

Cyclopropan-1-carbonsaeureethylester-1-carbonsaeureamid

B

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

C

cyclopropane-1,1-dicarboxylic acid amide [4-(3-fluoro-benzyloxy)-phenyl]-amide
5813-85-4

cyclopropane-1,1-dicarboxylic acid amide [4-(3-fluoro-benzyloxy)-phenyl]-amide

hydrogenchloride
7647-01-0

hydrogenchloride

ethanol
64-17-5

ethanol

1-carbethoxy-1-cyanocyclopropane
1558-81-2

1-carbethoxy-1-cyanocyclopropane

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

ethyl iodide
75-03-6

ethyl iodide

silver salt of/the/ cyclopropane-1.1-dicarboxylic acid

silver salt of/the/ cyclopropane-1.1-dicarboxylic acid

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

hydrogenchloride
7647-01-0

hydrogenchloride

ethanol
64-17-5

ethanol

1-carbethoxy-1-cyanocyclopropane
1558-81-2

1-carbethoxy-1-cyanocyclopropane

A

diethyl 2-chloroethylmalonate
18719-42-1

diethyl 2-chloroethylmalonate

B

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

sodium diethylmalonate
996-82-7

sodium diethylmalonate

ethylene dibromide
106-93-4

ethylene dibromide

A

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

B

butane-α.α.δ.δ-tetracarboxylic acid tetraethyl ester

butane-α.α.δ.δ-tetracarboxylic acid tetraethyl ester

ethyl 2-cyanoacetate
105-56-6

ethyl 2-cyanoacetate

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: alcoholic sodium ethylate
2: HCl; absolute alcohol
View Scheme
polyethylene glycol monomethyl ether

polyethylene glycol monomethyl ether

1,2-dichloro-ethane
107-06-2

1,2-dichloro-ethane

diethyl malonate
105-53-3

diethyl malonate

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
With tetrabutylammomium bromide; potassium carbonate
diethyl methylenemalonate
3377-20-6

diethyl methylenemalonate

dimethylsulfoxonium methylide
70775-39-2, 5367-24-8

dimethylsulfoxonium methylide

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Conditions
ConditionsYield
In tetrahydrofuran; mineral oil at 20 - 50℃; for 4.5h; Inert atmosphere;
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

[1-(hydroxymethyl)cyclopropyl]methanol
39590-81-3

[1-(hydroxymethyl)cyclopropyl]methanol

Conditions
ConditionsYield
With lithium aluminium tetrahydride In tetrahydrofuran for 16h; Reduction; Heating;99%
With lithium aluminium tetrahydride In tetrahydrofuran at 0℃;88%
With lithium aluminium tetrahydride In tetrahydrofuran at 0℃; for 0.5h;87%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

2-methyl-6-iodobenzoic acid methyl ester
103440-55-7

2-methyl-6-iodobenzoic acid methyl ester

diethyl 2-(2-(methoxycarbonyl)-3-methylphenethyl)malonate

diethyl 2-(2-(methoxycarbonyl)-3-methylphenethyl)malonate

Conditions
ConditionsYield
Stage #1: 2-methyl-6-iodobenzoic acid methyl ester With TurboGrignard In tetrahydrofuran; 2-methyltetrahydrofuran at -78℃; for 0.5h; Inert atmosphere; Sealed tube;
Stage #2: diethyl cyclopropane-1,1-dicarboxylate With 1,3-dimethyl-2-imidazolidinone; copper(I) iodide dimethyl sulfide complex In tetrahydrofuran; 2-methyltetrahydrofuran at -78 - 23℃; Inert atmosphere; Sealed tube;
99%
methyl 3-iodobiphenyl-2-carboxylate
960286-19-5

methyl 3-iodobiphenyl-2-carboxylate

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

diethyl 2-(2-(2-(methoxycarbonyl)-[1,1'-biphenyl]-3-yl)ethyl)malonate

diethyl 2-(2-(2-(methoxycarbonyl)-[1,1'-biphenyl]-3-yl)ethyl)malonate

Conditions
ConditionsYield
Stage #1: methyl 3-iodobiphenyl-2-carboxylate With TurboGrignard In tetrahydrofuran; 2-methyltetrahydrofuran at -78℃; for 0.5h; Inert atmosphere; Sealed tube;
Stage #2: diethyl cyclopropane-1,1-dicarboxylate With 1,3-dimethyl-2-imidazolidinone; copper(I) iodide dimethyl sulfide complex In tetrahydrofuran; 2-methyltetrahydrofuran at -78 - 23℃; Inert atmosphere; Sealed tube;
99%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

methyl 2-iodo-5-methoxybenzoate
857599-37-2

methyl 2-iodo-5-methoxybenzoate

diethyl 2-(4-methoxy-2-(methoxycarbonyl)phenethyl)malonate

diethyl 2-(4-methoxy-2-(methoxycarbonyl)phenethyl)malonate

Conditions
ConditionsYield
Stage #1: methyl 2-iodo-5-methoxybenzoate With TurboGrignard In tetrahydrofuran; 2-methyltetrahydrofuran at -78℃; for 0.5h; Inert atmosphere; Sealed tube;
Stage #2: diethyl cyclopropane-1,1-dicarboxylate With 1,3-dimethyl-2-imidazolidinone; copper(I) iodide dimethyl sulfide complex In tetrahydrofuran; 2-methyltetrahydrofuran at -78 - 23℃; Inert atmosphere; Sealed tube;
99%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

methyl 2-iodo-4-methylbenzoate
103440-56-8

methyl 2-iodo-4-methylbenzoate

diethyl 2-(2-(methoxycarbonyl)-5-methylphenethyl)malonate

diethyl 2-(2-(methoxycarbonyl)-5-methylphenethyl)malonate

Conditions
ConditionsYield
Stage #1: methyl 2-iodo-4-methylbenzoate With TurboGrignard In tetrahydrofuran; 2-methyltetrahydrofuran at -78℃; for 0.5h; Inert atmosphere; Sealed tube;
Stage #2: diethyl cyclopropane-1,1-dicarboxylate With 1,3-dimethyl-2-imidazolidinone; copper(I) iodide dimethyl sulfide complex In tetrahydrofuran; 2-methyltetrahydrofuran at -78 - 23℃; Inert atmosphere; Sealed tube;
99%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

methylenecyclohexane
1192-37-6

methylenecyclohexane

diethyl spiro<4.5>decane-1,1-dicarboxylate
104643-45-0

diethyl spiro<4.5>decane-1,1-dicarboxylate

Conditions
ConditionsYield
With ethylaluminum dichloride In hexane; 1,2-dichloro-ethane for 48h; Ambient temperature;98%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

5-bromo-2-iodo-benzoic acid methyl ester
181765-86-6

5-bromo-2-iodo-benzoic acid methyl ester

diethyl 2-(4-bromo-2-(methoxycarbonyl)phenethyl)malonate

diethyl 2-(4-bromo-2-(methoxycarbonyl)phenethyl)malonate

Conditions
ConditionsYield
Stage #1: 5-bromo-2-iodo-benzoic acid methyl ester With TurboGrignard In tetrahydrofuran; 2-methyltetrahydrofuran at -78℃; for 0.5h; Inert atmosphere; Sealed tube;
Stage #2: diethyl cyclopropane-1,1-dicarboxylate With 1,3-dimethyl-2-imidazolidinone; copper(I) iodide dimethyl sulfide complex In tetrahydrofuran; 2-methyltetrahydrofuran at -78 - 23℃; Inert atmosphere; Sealed tube;
98%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

ethyl 2-iodo-5-methylbenzoate

ethyl 2-iodo-5-methylbenzoate

diethyl 2-(2-(ethoxycarbonyl)-4-methylphenethyl)malonate

diethyl 2-(2-(ethoxycarbonyl)-4-methylphenethyl)malonate

Conditions
ConditionsYield
Stage #1: ethyl 5-methyl-2-iodobenzoate With TurboGrignard In tetrahydrofuran; 2-methyltetrahydrofuran at -78℃; for 0.5h; Inert atmosphere; Sealed tube;
Stage #2: diethyl cyclopropane-1,1-dicarboxylate With 1,3-dimethyl-2-imidazolidinone; copper(I) iodide dimethyl sulfide complex In tetrahydrofuran; 2-methyltetrahydrofuran at -78 - 23℃; Inert atmosphere; Sealed tube;
97%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

diethyl 2-(2-bromoethyl)-malonate
18721-64-7

diethyl 2-(2-bromoethyl)-malonate

Conditions
ConditionsYield
With hydrogen bromide at 20℃;95%
With hydrogen bromide at 0℃;
diphenyl diselenide
1666-13-3

diphenyl diselenide

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

diethyl 2-phenylselenoethylmalonate
90475-36-8

diethyl 2-phenylselenoethylmalonate

Conditions
ConditionsYield
With sodium tetrahydroborate In ethanol at 0℃; for 18h;95%
With sodium tetrahydroborate In ethanol at 20℃; for 24h; Inert atmosphere;77%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

sodium phenylselenide
23974-72-3

sodium phenylselenide

diethyl 2-phenylselenoethylmalonate
90475-36-8

diethyl 2-phenylselenoethylmalonate

Conditions
ConditionsYield
In ethanol for 18h; Ambient temperature;95%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

methyl 2-iodo 5-fluorobenzoate

methyl 2-iodo 5-fluorobenzoate

diethyl 2-(4-fluoro-2-(methoxycarbonyl)phenethyl)malonate

diethyl 2-(4-fluoro-2-(methoxycarbonyl)phenethyl)malonate

Conditions
ConditionsYield
Stage #1: methyl 3-fluoro-6-iodobenzoate With TurboGrignard In tetrahydrofuran; 2-methyltetrahydrofuran at -78℃; for 0.5h; Inert atmosphere; Sealed tube;
Stage #2: diethyl cyclopropane-1,1-dicarboxylate With 1,3-dimethyl-2-imidazolidinone; copper(I) iodide dimethyl sulfide complex In tetrahydrofuran; 2-methyltetrahydrofuran at -78 - 23℃; Inert atmosphere; Sealed tube;
95%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

dimethyl 2-iodoterephthalate
165534-79-2

dimethyl 2-iodoterephthalate

dimethyl 2-(4-ethoxy-3-(ethoxycarbonyl)-4-oxobutyl)terephthalate

dimethyl 2-(4-ethoxy-3-(ethoxycarbonyl)-4-oxobutyl)terephthalate

Conditions
ConditionsYield
Stage #1: dimethyl 2-iodoterephthalate With TurboGrignard In tetrahydrofuran; 2-methyltetrahydrofuran at -78℃; for 0.5h; Inert atmosphere; Sealed tube;
Stage #2: diethyl cyclopropane-1,1-dicarboxylate With 1,3-dimethyl-2-imidazolidinone; copper(I) iodide dimethyl sulfide complex In tetrahydrofuran; 2-methyltetrahydrofuran at -78 - 23℃; Inert atmosphere; Sealed tube;
95%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

1,1-cyclopropanedicarboxylic acid monoethyl ester
3697-66-3

1,1-cyclopropanedicarboxylic acid monoethyl ester

Conditions
ConditionsYield
Stage #1: diethyl cyclopropane-1,1-dicarboxylate With sodium hydroxide; water In ethanol for 16h;
Stage #2: With hydrogenchloride In water
94%
With ethanol; potassium hydrogencarbonate at 0 - 30℃; for 15h; Reagent/catalyst;93%
Stage #1: diethyl cyclopropane-1,1-dicarboxylate With sodium hydroxide; water In ethanol at 20℃;
Stage #2: With hydrogenchloride In water
91%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

methyl 2-iodo-5-methylbenzoate
103440-52-4

methyl 2-iodo-5-methylbenzoate

diethyl 2-(2-(methoxycarbonyl)-4-methylphenethyl)malonate

diethyl 2-(2-(methoxycarbonyl)-4-methylphenethyl)malonate

Conditions
ConditionsYield
Stage #1: methyl 2-iodo-5-methylbenzoate With TurboGrignard In tetrahydrofuran; 2-methyltetrahydrofuran at -78℃; for 0.5h; Inert atmosphere; Sealed tube;
Stage #2: diethyl cyclopropane-1,1-dicarboxylate With 1,3-dimethyl-2-imidazolidinone; copper(I) iodide dimethyl sulfide complex In tetrahydrofuran; 2-methyltetrahydrofuran at -78 - 23℃; Inert atmosphere; Sealed tube;
94%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

Tosyl isocyanate
4083-64-1

Tosyl isocyanate

diethyl 2-oxo-1-tosylpyrrolidine-3,3-dicarboxylate

diethyl 2-oxo-1-tosylpyrrolidine-3,3-dicarboxylate

Conditions
ConditionsYield
With C8H18BrI2Sn(2-)*BrMg(1+) In 1,2-dichloro-ethane at 25℃; for 24h; Catalytic behavior; Reagent/catalyst; Solvent; Inert atmosphere;92%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

ethyl 1-(hydroxymethyl)cyclopropanecarboxylate
3697-68-5

ethyl 1-(hydroxymethyl)cyclopropanecarboxylate

Conditions
ConditionsYield
With lithium tri(t-butoxy)aluminum hydride In tetrahydrofuran at 23 - 65℃; for 24h;91%
With lithium tri-t-butoxyaluminum hydride In tetrahydrofuran at 65℃; for 24h;91%
With lithium tri-t-butoxyaluminum hydride In tetrahydrofuran at 65℃; for 24h;91%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

methyl 3-iodo-1-benzothiophene-2-carboxylate

methyl 3-iodo-1-benzothiophene-2-carboxylate

diethyl 2-(2-(2-(methoxycarbonyl)benzo[b]thiophen-3-yl)ethyl)malonate

diethyl 2-(2-(2-(methoxycarbonyl)benzo[b]thiophen-3-yl)ethyl)malonate

Conditions
ConditionsYield
Stage #1: methyl 3-iodo-1-benzothiophene-2-carboxylate With TurboGrignard In tetrahydrofuran; 2-methyltetrahydrofuran at -78℃; for 0.5h; Inert atmosphere; Sealed tube;
Stage #2: diethyl cyclopropane-1,1-dicarboxylate With 1,3-dimethyl-2-imidazolidinone; copper(I) iodide dimethyl sulfide complex In tetrahydrofuran; 2-methyltetrahydrofuran at -78 - 23℃; Inert atmosphere; Sealed tube;
90%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

ethyl diethyl malonate
133-13-1

ethyl diethyl malonate

Conditions
ConditionsYield
With samarium diiodide; tris(dibenzoylmethano)iron(III); tert-butyl alcohol In tetrahydrofuran for 0.5h; Ambient temperature;89%
With hydrogen; palladium on activated charcoal In methanol Product distribution;
With (5,10,15,20-tetrakis-4-tolylporphyrinato)(methyl)rhodium(III); isopropyl alcohol In benzene-d6 at 200℃; for 48h; Darkness; Sealed tube; regioselective reaction;14 %Spectr.
ethylidenecyclohexane
1003-64-1

ethylidenecyclohexane

diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

diethyl 4-methylspiro<4.5>decane-1,1-dicarboxylate
104643-49-4

diethyl 4-methylspiro<4.5>decane-1,1-dicarboxylate

Conditions
ConditionsYield
With ethylaluminum dichloride In hexane; 1,2-dichloro-ethane for 50h; Ambient temperature;87%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

acetic anhydride
108-24-7

acetic anhydride

diethyl (2-acetoxyethyl)malonate
110281-43-1

diethyl (2-acetoxyethyl)malonate

Conditions
ConditionsYield
With boron trifluoride diethyl etherate In dichloromethane for 1.5h; Ambient temperature;85%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

cyclopropane-1,1-dicarbonyl peroxide
34867-88-4

cyclopropane-1,1-dicarbonyl peroxide

Conditions
ConditionsYield
With methanesulfonic acid; urea hydrogen peroxide adduct for 24h;85%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

methyl 2-iodo 4-chlorobenzoate
181765-85-5

methyl 2-iodo 4-chlorobenzoate

diethyl 2-(5-chloro-2-(methoxycarbonyl)phenethyl)malonate

diethyl 2-(5-chloro-2-(methoxycarbonyl)phenethyl)malonate

Conditions
ConditionsYield
Stage #1: methyl 4-chloro-2-iodobenzoate With TurboGrignard In tetrahydrofuran; 2-methyltetrahydrofuran at -78℃; for 0.5h; Inert atmosphere; Sealed tube;
Stage #2: diethyl cyclopropane-1,1-dicarboxylate With 1,3-dimethyl-2-imidazolidinone; copper(I) iodide dimethyl sulfide complex In tetrahydrofuran; 2-methyltetrahydrofuran at -78 - 23℃; Inert atmosphere; Sealed tube;
85%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

2-ethoxycarbonyl-1-cyclopentanone
611-10-9

2-ethoxycarbonyl-1-cyclopentanone

2-[2-(1-ethoxycarbonyl-2-oxo-cyclopentyl)-ethyl]-malonic acid diethyl ester

2-[2-(1-ethoxycarbonyl-2-oxo-cyclopentyl)-ethyl]-malonic acid diethyl ester

Conditions
ConditionsYield
With ytterbium(III) triflate In acetonitrile at 70℃; under 6000480 Torr; for 120h;83%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

4-Nitrophenyl isocyanate
100-28-7

4-Nitrophenyl isocyanate

diethyl 1-(4-nitrophenyl)-2-oxopyrrolidine-3,3-dicarboxylate

diethyl 1-(4-nitrophenyl)-2-oxopyrrolidine-3,3-dicarboxylate

Conditions
ConditionsYield
With C8H18BrI2Sn(2-)*BrMg(1+) In 1,2-dichloro-ethane at 40℃; for 24h; Inert atmosphere;82%
diethyl cyclopropane-1,1-dicarboxylate
1559-02-0

diethyl cyclopropane-1,1-dicarboxylate

ethyl 2-oxocyclohexane carboxylate
1655-07-8

ethyl 2-oxocyclohexane carboxylate

2-[2-(1-ethoxycarbonyl-2-oxo-cyclohexyl)-ethyl]-malonic acid diethyl ester

2-[2-(1-ethoxycarbonyl-2-oxo-cyclohexyl)-ethyl]-malonic acid diethyl ester

Conditions
ConditionsYield
With ytterbium(III) triflate In acetonitrile at 70℃; under 6000480 Torr; for 120h;81%

Diethyl 1,1-cyclopropanedicarboxylate Specification

The Diethyl cyclopropane-1,1-dicarboxylate is an organic compound with the formula C9H14O4. The IUPAC name of this chemical is diethyl cyclopropane-1,1-dicarboxylate. With the CAS registry number 1559-02-0, it is also named as 1,1-cyclopropanedicarboxylic acid, diethyl ester. The product's categories are Cyclopropanes; Simple 3-Membered Ring Compounds; Cycloalkanes; C8 to C9; Carbonyl Compounds; Esters. Besides, it is a clear colorless liquid, which should be stored in a cool and dry place.

Physical properties about Diethyl cyclopropane-1,1-dicarboxylate are: (1)ACD/LogP: 1.18; (2)ACD/LogD (pH 5.5): 1.18; (3)ACD/LogD (pH 7.4): 1.18; (4)ACD/BCF (pH 5.5): 4.67; (5)ACD/BCF (pH 7.4): 4.67; (6)ACD/KOC (pH 5.5): 104.94; (7)ACD/KOC (pH 7.4): 104.94; (8)#H bond acceptors: 4; (9)#Freely Rotating Bonds: 6; (10)Polar Surface Area: 52.6 Å2; (11)Index of Refraction: 1.473; (12)Molar Refractivity: 44.9 cm3; (13)Molar Volume: 159.9 cm3; (14)Polarizability: 17.8×10-24cm3; (15)Surface Tension: 42.4 dyne/cm; (16)Density: 1.164 g/cm3; (17)Flash Point: 86.7 °C; (18)Enthalpy of Vaporization: 45.56 kJ/mol; (19)Boiling Point: 219.2 °C at 760 mmHg; (20)Vapour Pressure: 0.121 mmHg at 25°C.

Preparation: this chemical can be prepared by 1,2-dibromo-ethane and malonic acid diethyl ester. This reaction will need reagent NaOEt and solvent ethanol. The yield is about 52%.



Uses of Diethyl cyclopropane-1,1-dicarboxylate: it can be used to produce cyclopropane-1,1-diyl-bis-methanol. It will need reagent LiAlH4 and diethyl ether.

When you are using this chemical, please be cautious about it as the following:
This chemical is irritating to eyes, respiratory system and skin. When you are using it, wear suitable protective clothing, do not breathe gas/fumes/vapour/spray (appropriate wording to be specified by the manufacturer) and avoid contact with skin and eyes In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C(OCC)C1(C(=O)OCC)CC1
(2)InChI: InChI=1/C9H14O4/c1-3-12-7(10)9(5-6-9)8(11)13-4-2/h3-6H2,1-2H3
(3)InChIKey: KYYUCZOHNYSLFV-UHFFFAOYAR
(4)Std. InChI: InChI=1S/C9H14O4/c1-3-12-7(10)9(5-6-9)8(11)13-4-2/h3-6H2,1-2H3
(5)Std. InChIKey: KYYUCZOHNYSLFV-UHFFFAOYSA-N

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