91790-89-5Relevant articles and documents
A NOVEL DIRECT SYNTHESIS OF AMIDINES FROM CARBOXYLIC ACIDS AND AMINES USING POLYPHOSPHORIC ACID TRIMETHYLSILYL ESTER (PPSE) AS CONDENSING AGENT
Kakimoto, Masa-aki,Ogata, Shin-ichi,Mochizuki, Amane,Imai, Yoshio
, p. 821 - 824 (1984)
It was found that amidines were obtained directly by the reaction of carboxylic acids with amines in the presence of PPSE, and the yields of amidines were dependent on the structure of amines rather than that of carboxylic acids.