3-(Aminomethyl)-5-methylhexanoic acid(CAS: 128013-69-4)

3-(Aminomethyl)-5-methylhexanoic acid is a white or off-white crystalline powder with a molecular weight of approximately 219.34 g/mol. It has a pKa of about 8.5 and is sparingly soluble in water but soluble in organic solvents like ethanol and acetone. The compound is moderately reactive, especially under basic conditions, and is susceptible to hydrolysis. It is also prone to racemization under acidic conditions.

3-(Aminomethyl)-5-methylhexanoic acid is typically synthesized via a multi-step process involving the protection of an amino group, followed by a condensation reaction with a carboxylic acid derivative. Commonly, the amino group is protected using tert-butyloxycarbonyl (Boc) or benzyloxycarbonyl (Z) groups. The protected intermediate is then reacted with 5-methylhexanoic acid chloride or an equivalent derivative under anhydrous conditions, followed by deprotection to yield the desired product. This method provides good yield and selectivity.

3-(Aminomethyl)-5-methylhexanoic acid finds applications in the pharmaceutical industry as an intermediate in drug synthesis, particularly in the development of prodrugs and peptide-based medications. It is also used in the polymer industry for the modification of polymer properties, and in the production of sensors and semiconductors for its unique chemical functionality.

When handling 3-(Aminomethyl)-5-methylhexanoic acid, it is essential to wear appropriate personal protective equipment (PPE), including gloves, goggles, and a lab coat. Work should be carried out in a well-ventilated area or a fume hood to prevent inhalation. Spills should be cleaned up with caution, using absorbent materials and disposing of waste according to local regulations. Always refer to the Safety Data Sheet (SDS) for detailed handling and disposal instructions.