H. Krawczyk, THE MANNICH REACTION OF DIETHYLPHOSPHONOACETIC ACID .2. A NEW ROUTE TO 1-(N-ALKYLAMINO)METHYLVINYLPHOSPHONATES, Phosphorus, sulfur and silicon and the related elements, 101(1-4), 1995, pp. 221-224
The Mannich reaction of diethylphosphonoacetic acid (1) with paraforma
ldehyde and primary aliphatic amines provides a short and efficient ap
proach to vinylphosphonates 5.