| | Identification | More |  | [Name] 
 (S)-N-Boc-3-aminobutyric acid
 |  | [CAS] 
 158851-30-0
 |  | [Synonyms] 
 BOC-ALA-(C*CH2)OH
 BOC-BETA-HOALA-OH
 BOC-BETA-HOMOALA-OH
 BOC-L-BETA-HOMOALANINE
 BOC PROTECTED (S)-B-AMINOBUTYRIC ACID
 N-BETA-T-BUTOXYCARBONYL-L-BETA-HOMOALANINE
 RARECHEM DK TD C012
 (S)-3-(BOC-AMINO)BUTYRIC ACID
 (S)-BOC-B2-HOALA-OH
 (S)-BOC-BETA2-HAL-OH
 (S)-BOC-BETA2-HOMOALANINE
 (S)-N-BOC-3-AMINOBUTYRIC ACID
 (S)-N-(TERT-BUTOXYCARBONYL)-3-AMINOBUTYRIC ACID
 Boc-β-homoalanine
 Boc-β-Homoala-OH
 Boc-L-Homoalanine
 Boc-BETA-HOMOALANINE
 Butanoic acid, 3-[[(1,1-dimethylethoxy)carbonyl]amino]-, (3S)-(9CI)
 Boc-L-b-homoalanine
 Boc-L-β-Homo-Ala-OH
 |  | [EINECS(EC#)] 
 1312995-182-4
 |  | [Molecular Formula] 
 C9H17NO4
 |  | [MDL Number] 
 MFCD00270345
 |  | [Molecular Weight] 
 203.24
 |  | [MOL File] 
 158851-30-0.mol
 | 
 | Chemical Properties | Back Directory |  | [Melting point ] 
 99 °C
 |  | [Boiling point ] 
 339.5±25.0 °C(Predicted)
 |  | [density ] 
 1.101±0.06 g/cm3(Predicted)
 |  | [storage temp. ] 
 Store at?0-5°C
 |  | [solubility ] 
 Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
 |  | [form ] 
 Powder
 |  | [pka] 
 4.43±0.10(Predicted)
 |  | [color ] 
 White to light yellow
 |  | [Optical Rotation] 
 Consistent with structure
 |  | [Water Solubility ] 
 Slightly soluble in water.
 |  | [BRN ] 
 6800577
 |  | [InChI] 
 InChI=1S/C9H17NO4/c1-6(5-7(11)12)10-8(13)14-9(2,3)4/h6H,5H2,1-4H3,(H,10,13)(H,11,12)/t6-/m0/s1
 |  | [InChIKey] 
 PYNDHEONPQYIAN-LURJTMIESA-N
 |  | [SMILES] 
 C(O)(=O)C[C@@H](NC(OC(C)(C)C)=O)C
 |  | [CAS DataBase Reference] 
 158851-30-0(CAS DataBase Reference)
 | 
 | Safety Data | Back Directory |  | [Safety Statements ] 
 S22:Do not breathe dust .
 S24/25:Avoid contact with skin and eyes .
 |  | [WGK Germany ] 
 3
 
 |  | [HazardClass ] 
 IRRITANT
 | 
 | Hazard Information | Back Directory |  | [Chemical Properties] 
 White to off-white powder
 |  | [Uses] 
 (S)-3-(Boc-amino)butyric acid is used for the syntheses of aza-analogues of macrosphelides, synthesis of hybrid peptides with 12/10-helix, and in the synthesis of potentially pharmaceutically active products for the treatment of auto-immune and inflammatory diseases.
 |  | [reaction suitability] 
 reaction type: Boc solid-phase peptide synthesis
 |  | [Synthesis] 
 
 Under argon protection, sodium dihydrogen phosphate (7.0 g) and 34.5% aqueous hydrogen peroxide solution (20 mL) were sequentially added to a solution of tert-butyl (S)-(4-oxobutan-2-yl)carbamate (7.3 g, 39.0 mmol) in acetonitrile (50 mL), and the reaction mixture was stirred at 0 °C for 10 min. Subsequently, a solution of sodium chlorite (6.0 g) in water (20 mL) was added dropwise to the reaction system and stirring was continued at 0 °C for 1 hour. Upon completion of the reaction, the reaction was quenched with saturated sodium bicarbonate solution and the aqueous phase was washed with dichloromethane. The aqueous layer was acidified with 10% hydrochloric acid and extracted with dichloromethane, the organic phase was dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure. The resulting residue was identified by 1H-NMR as carboxylic acid (8) (6.0 g, 29.6 mmol, 76% yield), which could be used in the next reaction without further purification. |  | [References] 
 [1] Tetrahedron,  2011,  vol. 67,  # 40,  p. 7681 - 7685
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