METHOD OF PREPARING ALKENYLSUCCINYLAMIDES Russian patent published in 2007 - IPC C08F8/32 C08F8/46 C08G73/10 C10M149/22 C10L1/22 

FIELD: organic synthesis.

SUBSTANCE: alkenylsuccinylamides are prepared via (i) alkenylation of maleic anhydride with poly-α-olefin or polyisobutylene having 10 to 30 carbon atoms and molecular mass 800-1000 in presence of initiators at 60-100°C for 0.5-1 h and then at 165-175°C for 3.5-4.5 h, molar ration of polymeric reagent to maleic anhydride being 1:(1-1.1) followed by (ii) condensation of resulting alkenylsuccinic anhydride in presence of oil containing 5-methyl-1,4,7,10-teraaminodecane or 8 -methyl-1,4,7,10,13,16-hexaaminohexadecane first at 30-58°C for 0.5-1.0 h and then at 136-145°C for 3.5-4.0 h at alkenylsuccinic anhydride-to-amine molar ratio (1-1.5):1. In step (i), initiator is selected from t-butyl peroxide and methyl ethyl ketone peroxide in amounts 0.8-1.4% of the summary weight of initial reactants, whereas oil is industrial oil 20A or I-40A.

EFFECT: simplified technology, enabled use of accessible raw materials, and improved quality of product.

4 cl, 1 tbl