Patent Number: 8,716,520

Title: Method of resolution of (RS)- 1,1'-BI-2-naphthol for obtaining enantiomeric pure I.E. (S)-(-)-1,1'-BI-2-naphthol and/or (R)-(+)-1,1'-BI-2-naphthol via co-crystal formation with optically active derivatives of .gamma.-amino acids

Abstract: Novel method for synthesis of optically pure (S)-(-)-1,1'-bi-2-naphthol and/or (R)-(+)-1,1'-bi-2-naphthol via resolution of racemic (RS)-1,1'-bi-2-naphthol through formation of co-crystal with optically active derivatives of .gamma.-amino acids.

Inventors: Roy; Bhairab Nath (Pune, IN), Singh; Girij Pal (Pune, IN), Lathi; Piyush Suresh (Pune, IN), Mitra; Rangan (Pune, IN)

Assignee: Lupin Limited

International Classification: C07C 229/02 (20060101); C07C 39/16 (20060101)

Expiration Date: 5/06/12018