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inquiry1,2-Cyclopentanedicarboxylicacid, (1R,2S)-rel-Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:pharmaceutical intermediate Transportation:by air, by sea, by express
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inquiryConditions | Yield |
---|---|
Stage #1: ethyl 2-oxocyclohexane carboxylate In chloroform at 0 - 20℃; Stage #2: With potassium hydroxide In water at 0 - 20℃; Favorskii rearrangement; | 74% |
Stage #1: ethyl 2-oxocyclohexane carboxylate With bromine In chloroform at 0 - 20℃; Stage #2: With potassium hydroxide In water at 0℃; for 6h; Stage #3: With hydrogenchloride In water pH=5; | 63% |
Multi-step reaction with 2 steps 1: Br2 / CH2Cl2 2: aq. KOH; aq. HCl View Scheme |
ethyl 3-bromo-2-oxocyclohexanecarboxylate
cis-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
With potassium hydroxide Favorskii rearrangement; | 73% |
With hydrogenchloride; potassium hydroxide | |
Multi-step reaction with 2 steps 1: aq. NaOH / ethanol 2: (i) AcCl, (ii) OH- View Scheme |
2,4-dimethoxybicyclo<3.2.1>octane
cis-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
54% |
Conditions | Yield |
---|---|
With platinum Hydrogenation; |
trans-1,2-cyclopentanedicarboxylic acid
cis-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
With acetic anhydride Loesen in Wasser oder in Kalilauge und Ansaeuern; | |
(i) AcCl, (ii) OH-; Multistep reaction; | |
Multi-step reaction with 2 steps 1: 1.5 h / 200 °C 2: H2O / Heating View Scheme |
cis-1,2-divinylcyclopentane
cis-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
(i) O3, AcOH, (ii) aq. H2O2; Multistep reaction; |
exo-cis-6,7-Dihydroxy-cis-bicyclo<3,2,0>heptan
cis-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
With potassium dichromate; sulfuric acid at 15 - 20℃; for 1h; |
cyclopentane-cis-1,2-dicarboxylic acid anhydride
cis-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
With water Heating; |
Conditions | Yield |
---|---|
With bis(1,5-cyclooctadiene)nickel (0); (c-C6H11)2PCH2CH2-2-pyridyl; sulfuric acid 1) THF, 20 deg C, 48 h, 2) THF, room temperature, 10 h; Yield given. Multistep reaction; |
ethyl 5-bromo-2-oxocyclohexanecarboxylate
cis-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
With potassium hydroxide at 0℃; for 2h; Yield given; |
2,4,5,6,3a,6a-hexahydro-2-oxapentalen-1,3-dione
cis-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
durch Ansaeuern; anhydride of/the/ cis-cyclopentane-dicarboxylic acid-(1.2); |
cis-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
With nitric acid |
A
cis-1,2-cyclopentanedicarboxylic acid
trans-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
With hydrogenchloride Isolierung ueber das Anhydrid; |
rac-bicyclo[3.2.0]hept-2-en-6-one
nitric acid
A
1,5-pentanedioic acid
B
cis-1,2-cyclopentanedicarboxylic acid
hydrogenchloride
Ethyl 1-cyanocyclopentane-1,2-dicarboxylate
A
cis-1,2-cyclopentanedicarboxylic acid
trans-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
optically inactive substance of bp 3.5: 135-136deg; |
1,1,2,2-Cyclopentantetracarbonsaeure-tetraethylester
cis-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: glacial acetic acid; concentrated sulfuric acid; water 2: acetic acid anhydride / Loesen in Wasser oder in Kalilauge und Ansaeuern View Scheme |
cis-1,2-Cyclopentan-diessigsaeure-bis-dimethylamid
cis-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: LiAlH4 2: (i) aq. H2O2, (ii) (thermolysis) 3: (i) O3, AcOH, (ii) aq. H2O2 View Scheme |
(cis-cyclopentane-1,2-diyl)-di-acetic acid
cis-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: (i) SOCl2, (ii) /BRN= 605257/ 2: LiAlH4 3: (i) aq. H2O2, (ii) (thermolysis) 4: (i) O3, AcOH, (ii) aq. H2O2 View Scheme |
cis-1.2-Bis-<2-dimethylamino-ethyl>-cyclopentan
cis-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: (i) aq. H2O2, (ii) (thermolysis) 2: (i) O3, AcOH, (ii) aq. H2O2 View Scheme |
cis-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: aq. NaOH / 2 h / 60 °C 2: K2Cr2O7, H2SO4 / 1 h / 15 - 20 °C View Scheme |
Conditions | Yield |
---|---|
With hydrogen; aluminum nickel In phosphorus pentaoxide; ethanol |
cis-1,2-cyclopentanedicarboxylic acid
cyclopentane-cis-1,2-dicarboxylic acid anhydride
Conditions | Yield |
---|---|
With acetic anhydride for 20h; Reflux; | 89% |
With acetic anhydride for 10h; Heating; | 85% |
With acetic anhydride for 20h; Heating; | 81% |
cis-1,2-cyclopentanedicarboxylic acid
cis-1,2-bis(hydroxymethyl)cyclopentane
Conditions | Yield |
---|---|
With lithium aluminium tetrahydride | 65% |
With lithium aluminium tetrahydride In diethyl ether | |
With Trimethyl borate; dimethylsulfide borane complex In tetrahydrofuran at 0 - 20℃; | |
Multi-step reaction with 2 steps 1: 220 °C 2: LiAlH4 View Scheme | |
Multi-step reaction with 2 steps 1: diethyl ether 2: LiAlH4 View Scheme |
diazomethane
cis-1,2-cyclopentanedicarboxylic acid
dimethyl cis-1,2-cyclopentanedicarboxylate
Conditions | Yield |
---|---|
With diethyl ether | |
In methanol |
cis-1,2-cyclopentanedicarboxylic acid
cis-hexahydro-cyclopentimidazol-2-one
Conditions | Yield |
---|---|
With chloroform; tris-(2-chloro-ethyl)-amine; sulfuric acid anschliessendes Erhitzen mit wss. HCl und Behandeln des Reaktionsprodukts in wss. KOH mit COCl2 in Toluol; |
cis-1,2-cyclopentanedicarboxylic acid
trans-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
With hydrogenchloride at 180℃; |
cis-1,2-cyclopentanedicarboxylic acid
2,4,5,6,3a,6a-hexahydro-2-oxapentalen-1,3-dione
Conditions | Yield |
---|---|
at 150 - 160℃; anhydride of/the/ cis-cyclopentane-dicarboxylic acid-(1.2); | |
Multi-step reaction with 2 steps 1: concentrated hydrochloric acid / 180 °C 2: acetyl chloride / 140 °C / im Einschlussrohr View Scheme | |
With acetic anhydride for 20h; Heating / reflux; |
cis-1,2-cyclopentanedicarboxylic acid
cis-cyclopentane-1,2-dicarboxylic acid-anhydride
Conditions | Yield |
---|---|
With acetic anhydride |
cis-1,2-cyclopentanedicarboxylic acid
cis-Cyclopentan-1,2-dicarbamid
Conditions | Yield |
---|---|
(i) SOCl2, (ii) aq. NH3; Multistep reaction; |
cis-1,2-cyclopentanedicarboxylic acid
[5-(thiophen-2-yl)thiophen-2-yl]methanamine
Conditions | Yield |
---|---|
Stage #1: cis-1,2-cyclopentanedicarboxylic acid With 1,1'-carbonyldiimidazole In tetrahydrofuran Stage #2: [5-(thiophen-2-yl)thiophen-2-yl]methanamine In tetrahydrofuran |
cis-1,2-cyclopentanedicarboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 13 steps 1.1: borane dimethyl sulfide complex; trimethylborate / tetrahydrofuran / 0 - 20 °C 2.1: phosphorus tribromide / -10 - 85 °C 3.1: ethanol / 100 °C 4.1: DOWEX 550A (OH), activated / H2O 5.1: 130 - 200 °C / 200 Torr 6.1: 99 percent / benzene / 48 h / 20 °C 7.1: H2 / PtO2 / tetrahydrofuran / 20 °C / 760 Torr 8.1: hydroquinidine (anthraquinone-1,4-diyl) diether / diethyl ether / 72 h / -18 °C 9.1: oxalyl chloride / toluene / 20 °C 10.1: H2; 2,6-lutidine / Pd/C / tetrahydrofuran / 20 °C / 2068.59 Torr 11.1: triethylamine-zinc chloride complex / benzene / 20 - 40 °C 12.1: O3 / methanol; CH2Cl2 / -7 °C 13.1: PhSeCl; pyridine / CH2Cl2 / 0.5 h / 0 °C 13.2: 48 percent / aq. H2O2 / CH2Cl2 / 0.5 h / 0 °C View Scheme |
cis-1,2-cyclopentanedicarboxylic acid
6-formyl-octahydro-indene-5-carboxylic acid methyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 10 steps 1: borane dimethyl sulfide complex; trimethylborate / tetrahydrofuran / 0 - 20 °C 2: phosphorus tribromide / -10 - 85 °C 3: ethanol / 100 °C 4: DOWEX 550A (OH), activated / H2O 5: 130 - 200 °C / 200 Torr 6: 99 percent / benzene / 48 h / 20 °C 7: H2 / PtO2 / tetrahydrofuran / 20 °C / 760 Torr 8: hydroquinidine (anthraquinone-1,4-diyl) diether / diethyl ether / 72 h / -18 °C 9: oxalyl chloride / toluene / 20 °C 10: H2; 2,6-lutidine / Pd/C / tetrahydrofuran / 20 °C / 2068.59 Torr View Scheme |
cis-1,2-cyclopentanedicarboxylic acid
6-oxo-octahydro-indene-5-carboxylic acid methyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 12 steps 1: borane dimethyl sulfide complex; trimethylborate / tetrahydrofuran / 0 - 20 °C 2: phosphorus tribromide / -10 - 85 °C 3: ethanol / 100 °C 4: DOWEX 550A (OH), activated / H2O 5: 130 - 200 °C / 200 Torr 6: 99 percent / benzene / 48 h / 20 °C 7: H2 / PtO2 / tetrahydrofuran / 20 °C / 760 Torr 8: hydroquinidine (anthraquinone-1,4-diyl) diether / diethyl ether / 72 h / -18 °C 9: oxalyl chloride / toluene / 20 °C 10: H2; 2,6-lutidine / Pd/C / tetrahydrofuran / 20 °C / 2068.59 Torr 11: triethylamine-zinc chloride complex / benzene / 20 - 40 °C 12: O3 / methanol; CH2Cl2 / -7 °C View Scheme |
cis-1,2-cyclopentanedicarboxylic acid
octahydro-2-oxa-s-indacene-1,3-dione
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: borane dimethyl sulfide complex; trimethylborate / tetrahydrofuran / 0 - 20 °C 2: phosphorus tribromide / -10 - 85 °C 3: ethanol / 100 °C 4: DOWEX 550A (OH), activated / H2O 5: 130 - 200 °C / 200 Torr 6: 99 percent / benzene / 48 h / 20 °C 7: H2 / PtO2 / tetrahydrofuran / 20 °C / 760 Torr View Scheme |
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