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CAS No. : | 1200-22-2 | MDL No. : | MFCD01631142 |
Formula : | C8H14O2S2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | - |
M.W : | 206.33 | Pubchem ID : | - |
Synonyms : |
(R)-(+)-α-Lipoic acid;R-(+)-Thioctic acid;Thiogamma oral;Thiogamma Injekt;Thioctic Acid;Thioctacide T;Verla Lipon;Lipoate;(+)-alpha-Lipoic acid;(R)-5-(1,2-Dithiolan-3-yl)pentanoic acid;R-(+)-alpha-Lipoic acid;(R)-(+)-Lipoic Acid;(R)-α-Lipoic Acid;Alpha-Lipoic acid;α-Lipoic acid;(+)-α-Lipoic acid
|
Chemical Name : | (R)-5-(1,2-Dithiolan-3-yl)pentanoic acid |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
86% | 2.97 g of lipoic acid (LA), 3.31 g of 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC·HCl) was added to a 100 mL round bottom flask.Add 40 mL CH2Cl2 to dissolve and activate for 30 min.1.25 g of Boc-serinol dissolved in 20 mL of CH 2 Cl 2 and 2.21 g of 4-(dimethylamino)pyridine (DMAP) were added to the above mixture.Reaction for 12 h. After the reaction is completed, it is filtered.The filtrate was thoroughly washed with an excess of 0.1 mol/L hydrochloric acid.Discard the water phase after standing. Dry the oil phase with sodium sulfate and purify by column chromatography (eluent: CHCl3/CH3OH=20/1, v/v) to give a pale yellowOily liquid di-Boc-LA-Ser (3.19 g, yield 86%).Take 1g di-Boc-LA-Ser in 10mL CH2Cl2,After cooling to 0 C, 0.41 g of trifluoroacetic acid (TFA) was slowly added dropwise and reacted for 2 h.The mixture was concentrated in vacuo to give a crude di-L-Ser. |