(19)
(11) EP 0 611 399 A1

(12)

(43) Date of publication:
24.08.1994 Bulletin 1994/34

(21) Application number: 92924228.0

(22) Date of filing: 03.11.1992
(51) International Patent Classification (IPC): 
C07C 51/ 373( . )
C12P 7/ 40( . )
C12P 13/ 04( . )
C07F 9/ 38( . )
C12P 7/ 42( . )
(86) International application number:
PCT/US1992/009420
(87) International publication number:
WO 1993/009243 (13.05.1993 Gazette 1993/12)
(84) Designated Contracting States:
BE DE ES FR GB IE IT NL

(30) Priority: 06.11.1991 US 19910788640
06.11.1991 US 19910788648
06.11.1991 US 19910788683

(71) Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
Wilmington Delaware 19898 (US)

(72) Inventors:
  • ANTON, David, Leroy
    Wilmington, DE 19803 (US)
  • DiCOSIMO, Robert
    Wilmington, DE 19808 (US)
  • PORTA, Earnest, William
    Landenberg, PA 19350 (US)

(74) Representative: Jones, Alan John, et al 
CARPMAELS & RANSFORD 43 Bloomsbury Square
London, WC1A 2RA
London, WC1A 2RA (GB)

   


(54) HYDROGENATION OF ENZYMATICALLY-PRODUCED GLYOXYLIC ACID/AMINOMETHYL-PHOSPHONIC ACID MIXTURES