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CAS No.: | 119365-69-4 |
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Name: | (R)-6,8-Dimercaptooctanoic acid |
Article Data: | 14 |
Molecular Structure: | |
Formula: | C8H16 O2 S2 |
Molecular Weight: | 208.346 |
Synonyms: | Octanoicacid, 6,8-dimercapto-, (R)-; (R)-Dihydro-a-lipoic acid; (R)-Dihydrolipoic acid |
Density: | 1.134 |
Boiling Point: | 361 ºC |
Flash Point: | 172 ºC |
PSA: | 114.90000 |
LogP: | 2.24970 |
(R)-1,2-dithiolane-3-pentanoic acid
(R)-6,8-dimercaptooctanoic acid
Conditions | Yield |
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With sodium tetrahydroborate In methanol at 20℃; for 1h; | 100% |
With 1,4-dihydronicotinamide adenine dinucleotide; porcine heart dihydrolipoamide dehydrogenase at 35℃; Enzyme kinetics; | |
With sodium borohydrid In water; toluene |
Thioctic acid
(R)-6,8-dimercaptooctanoic acid
Conditions | Yield |
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With sodium borate; sodium hydrogencarbonate |
(R)-8-hydroxy-6-mercapto-octanoic acid
thiourea
(R)-6,8-dimercaptooctanoic acid
Conditions | Yield |
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With hydrogen bromide anschliessend mit wss. Natronlauge; |
(R)-6,8-dimercaptooctanoic acid
Conditions | Yield |
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With phosphate buffer pH 7.0; wheatgerm lipase |
Methyl (6R)-6,8-diacetyldihydrolipoate
(R)-6,8-dimercaptooctanoic acid
Conditions | Yield |
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With potassium hydroxide; water at 20℃; for 6h; Hydrolysis; |
methyl adipoyl chloride
(R)-6,8-dimercaptooctanoic acid
Conditions | Yield |
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Multi-step reaction with 7 steps 1: pyridine / CH2Cl2 / 4 h / 20 °C 2: CH2Cl2 / 3 h / 60 °C 3: yeast; EtOH; NaCl / H2O / 37 °C / pH 6.0 / Microbiological reaction 4: 72 percent / NaBH4 / tetrahydrofuran / 3 h / Heating 5: Et3N / CH2Cl2 / 1 h / 0 °C 6: dimethylformamide; cyclohexane / 4 h / 50 °C 7: H2O; KOH / 6 h / 20 °C View Scheme | |
Multi-step reaction with 7 steps 1: Ca(OH)2 / CH2Cl2 / 2 h / Heating 2: NH3; H2O / CH2Cl2 / 3 h / 25 °C / pH 9 3: H2 / Ru2Cl4[(S)-BINAP]2*Et3N / methanol / 12 h / 80 °C / 22.5 Torr 4: 82 percent / NaBH4 / tetrahydrofuran / 3 h / Heating 5: Et3N / CH2Cl2 / 1 h / 0 °C 6: dimethylformamide; cyclohexane / 4 h / 50 °C 7: H2O; KOH / 6 h / 20 °C View Scheme |
(6S)-(-)-methyl 6,8-dihydroxyoctanoate
(R)-6,8-dimercaptooctanoic acid
Conditions | Yield |
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Multi-step reaction with 3 steps 1: Et3N / CH2Cl2 / 1 h / 0 °C 2: dimethylformamide; cyclohexane / 4 h / 50 °C 3: H2O; KOH / 6 h / 20 °C View Scheme |
(6S)-(+)-methyl 6,8-bis(methylsulfonyloxy)octanoate
(R)-6,8-dimercaptooctanoic acid
Conditions | Yield |
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Multi-step reaction with 2 steps 1: dimethylformamide; cyclohexane / 4 h / 50 °C 2: H2O; KOH / 6 h / 20 °C View Scheme | |
Stage #1: (6S)-(+)-methyl 6,8-bis(methylsulfonyloxy)octanoate With sodium sulfide; sulfur In methanol Stage #2: With sodium hydroxide; sodium tetrahydroborate In methanol; water Stage #3: With methanol; sulfuric acid; water pH=4; |
3-oxo-1,8-octanoic acid dimethyl ester
(R)-6,8-dimercaptooctanoic acid
Conditions | Yield |
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Multi-step reaction with 5 steps 1: H2 / Ru2Cl4[(S)-BINAP]2*Et3N / methanol / 12 h / 80 °C / 22.5 Torr 2: 82 percent / NaBH4 / tetrahydrofuran / 3 h / Heating 3: Et3N / CH2Cl2 / 1 h / 0 °C 4: dimethylformamide; cyclohexane / 4 h / 50 °C 5: H2O; KOH / 6 h / 20 °C View Scheme |
(3S)-3-hydroxyoctanedioic acid dimethyl ester
(R)-6,8-dimercaptooctanoic acid
Conditions | Yield |
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Multi-step reaction with 4 steps 1: 82 percent / NaBH4 / tetrahydrofuran / 3 h / Heating 2: Et3N / CH2Cl2 / 1 h / 0 °C 3: dimethylformamide; cyclohexane / 4 h / 50 °C 4: H2O; KOH / 6 h / 20 °C View Scheme |