578742-53-7

Basic information

• Product Name: Butanoic acid, 2-bromo-3-methyl-, (2R)-, compd. with N-cyclohexylcyclohexanamine (1:1)
• CAS NO: 578742-53-7
• Molecular Formula: C12H23N.C5H9BrO2
• Molecular Weight: 362.351
• Mol File: 578742-53-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Butanoic acid, 2-bromo-3-methyl-, (2R)-, compd. with N-cyclohexylcyclohexanamine (1:1)(CAS DataBase Reference)
• NIST Chemistry Reference: Butanoic acid, 2-bromo-3-methyl-, (2R)-, compd. with N-cyclohexylcyclohexanamine (1:1)(578742-53-7)
• EPA Substance Registry System: Butanoic acid, 2-bromo-3-methyl-, (2R)-, compd. with N-cyclohexylcyclohexanamine (1:1)(578742-53-7)

Safety Data

• Hazardous Substances Data: 578742-53-7(Hazardous Substances Data)

Upstream product

• 76792-22-8 (R)-2-bromoisovaleric acid 
• 101-83-7 N-cyclohexyl-cyclohexanamine 

Relevant articles and documents

PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE 2-HALOGENO- CARBOXYLIC ACIDS

The invention provides processes for producing efficiently optically active 2-halogenocarboxylic acids useful in the preparation of drugs or the like and salts thereof with amines. Specifically, an optically active 2-halogenocarboxylic acid is produced by halogenating an optically active amino acid in water in the presence of a hydrophobic organic solvent and nitrous acid with the configuration retained and with the racemization inhibited through the removal of 2-hydroxy- bromocarboxylic acid formed as a by-product; the obtained optically active 2-halogenocarboxylic acid is transferred to an aqueous phase by converting it into a salt thereof with a base, followed by the removal of the organic phase; and the optically active 2-halogenocarboxylic acid is transferred again to an organic solvent phase, followed by the removal of the aqueous phase, whereby an optically active 2-halogenocarboxylic acid is obtained through the removal of a halogen component. Further, a high-quality salt of an optically active 2-halogenocarboxylic acid with an amine can be obtained by a crystallization method wherein the amine is added over the period of 1/2 hour or longer either continuously or in portions and/or wherein the crystallization solvent consists of a hydrophobic organic solvent and a hydrophilic organic solvent.