HYDROCYANATION OF OLEFINS

• US 3,694,485 A
• Filed: 04/23/1970
• Issued: 09/26/1972
• Est. Priority Date: 11/06/1967
• Status: Expired due to Term

• Current Assignee: Brian William Taylor, William C. Drinkard Jr
• Original Assignee: Brian William Taylor, William C. Drinkard Jr
• Inventors: Drinkard, William C. Jr., Taylor, Brian William
• Primary Examiner(s): Brust, Joseph P.
• Application Number:
  US05/043,284
• Time in Patent Office: 887 Days
• Field of Search: 260/465.3,465.6,465.9,465.8
• US Class Current: 558/335
• CPC Class Codes: C07C 253/10 to compounds containing carbon-to-carbon double bonds
• CPC Class Codes: C07C 255/00 Carboxylic acid nitriles cyanogen or compounds thereof C01C3/00
• CPC Class Codes: C07C 255/04 containing two cyano groups bound to the carbon skeleton
• CPC Class Codes: C07C 255/07 Mononitriles
• CPC Class Codes: C07C 255/09 containing at least two cyano groups bound to the carbon skeleton

Abstract

Process of isomerizing 3-pentenenitriles to 4-pentenenitrile using compounds of iron, or ruthenium having a valence of +2 or less as a catalyst and of adding hydrogen cyanide to carboncarbon double bonds such as in 4-pentenenitrile at from -25* to 200*C using as catalysts ruthenium or iron compounds having a valence of +2 or less.

Claims

2. The process of claim 1 wherein (LnMXm)b is ((C6H5)3P)3-RuCl2.

3. The process of claim 1 wherein (LnMXm)b is Fe3(CO)12.