Organic compounds -- part of the class 532-570 series – Organic compounds – Unsubstituted hydrocarbyl chain between the ring and the -c-...
Patent
1994-03-01
1996-04-23
Berch, Mark L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Unsubstituted hydrocarbyl chain between the ring and the -c-...
540451, 540200, 546245, 548245, 548540, C07B 4306, C07D22310, C07D20712
Patent
active
055104770
ABSTRACT:
High quality acyl lactam imides are prepared by reacting an acyl lactam of the formula ##STR1## where 5 carbon atoms and an acylating acid of the formula R'CO.sub.2 H or by reacting a lactam, an anhydride of the formula (RCO).sub.2 O where R is 1 to 5 carbon atoms and an acylating acid, preferably in the presence of a base catalyst. The process affords acyl lactam imides in high yield and at lower reaction temperatures by providing for the removal of volatile carboxylic acid by-products under vacuum or by the use of a stripping gas. The acyl lactam imides are particularly suited for use as bleach activators in detergent compositions.
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Miller Larry E.
Willey Alan D.
Berch Mark L.
Jones M. D.
The Procter & Gamble & Company
Yetter J. J.
Zerby K. W.
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