申请人:Krull Matthias
公开号:US20120090983A1
公开(公告)日:2012-04-19
The invention relates to a continuous method for N-acylating amino group-carrying organic acids by reacting at least one carboxylic acid of formula (I) R
1
—COOH (I), wherein R
1
represents hydrogen or an optionally substituted hydrocarbon group with 1 to 50 carbon atoms, with at least one at least one amino group-carrying organic acid of formula (II) R
2
NH-A-X (II), wherein A represents an optionally substituted hydrocarbon group with 1 to 50 carbon atoms, X represents an acid group or the metal salt thereof and R
2
represents hydrogen, an optionally substituted hydrocarbon group with 1 to 50 C atoms or a group of the formula -A-X, wherein A and X independently are defined as above, in a reaction tube the longitudinal axis of which extends in the direction of propagation of the microwaves of a monomode microwave applicator, under microwave irradiation to form amide.