ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

The aza-Pudovik reaction accelerated in external constant magnetic field

Rafał Karpowicz, Jarosław Lewkowski, Marta Morawska, Ewa Miękoś, and Marek Zieliński

Department of Organic Chemistry, Tamka 12, 91-403 Łódź, Poland

E-mail: jlewkow@uni.lodz.pl

Abstract: The aza-Pudovik reaction of N-benzyl aromatic and aliphatic aldimines with dimethyl H-phosphonate was found to be accelerated significantly when carried out in an external magnetic field. Its conversion rates were analyzed and compared with those obtained during the aza-Pudovik reaction carried out under standard conditions. Magnetic acceleration was found to have a similar degree as in that observed in the Kabachnik–Fields reaction. However, the formation of the starting imines was found not to be susceptible to constant magnetic field – no acceleration was observed.

Keywords: constant magnetic field – aza-Pudovik reaction – aldimines – dimethyl H-phosphonate

Full paper is available at www.springerlink.com.

DOI: 10.1515/chempap-2016-0087

Chemical Papers 70 (11) 1529–1532 (2016)