公开(公告)号：US3649688A

公开(公告)日：1972-03-14

申请号：US3649688D

申请日：1969-07-10

Applicant: LUBRIZOL CORP

Inventor： GORDON JOSEPH ,  KAUFMAN PAUL R ,  HOKE DONALD I

IPC: C07C231/06 ,  C07C67/00 ,  C07C231/00 ,  C07C231/14 ,  C07C233/30 ,  C07C233/31 ,  C08F20/58 ,  C07C103/00 ,  C07C103/56

CPC classification number: C07C233/30 ,  C08F20/58

Abstract: N-3-OXOHYDROCARBON-SUBSTITUTED ARCYLAMIDES, ESPECIALLY DIACETONE ACRYLAMIDE, ARE PRODUCED IN IMPROVED YIELDS BY A METHOD INVOLVING THE REACTIO OF 3-OXOALCOHOLS SUCH AS DIACETONE ALCOHOL WITH AN ACRYLONITRILE IN THE PRESENCE OF SULFURIC ACID. ACCORDING TO THIS METHOD THE 3-OXOALCOHOL IS ADDED TO A MIXTURE OF THE NITRILE AND ACID, THE LATTER BEING OF AT LEAST 93% CONCENTRATION, AT A TEMPERATURE BELOW 30*C, AND THE MOLAR RATIO OF SULFURIC ACID TO NITRILE IS AT LEAST 1.8:1.