α-Aminophosphonates and α-Aminophosphine Oxides by the Microwave-Assisted Kabachnik–Fields Reactions of 3-Amino-6-methyl-2 H-pyran-2-ones
Contract grant sponsor: Slovenian–Hungarian Scientific Research program.
Contract grant numbers: BI-HU/11-12-005 and 2011-0637.
Contract grant sponsor: Hungarian Scientific Research Fund.
Contract grant numbers: OTKA K83118 and TÁMOP-4.2.2.B-10/1-2010-0009.
Contract grant sponsor: Slovenian Research Agency.
Contract grant number: P1-0230-0103.
ABSTRACT
The microwave-assisted Kabachnik–Fields reaction of a series of 3-amino-6-methyl-2H-pyran-2-ones, paraformaldehyde, and dialkyl phosphites or diphenylphosphine oxide led to α-aminophosphonates or α-aminophosphine oxides, respectively. The α‑aminophosphonates were obtained under solvent-free conditions, whereas the α‑aminophosphine oxides in acetonitrile. The novel products were characterized by NMR and mass spectral data. © 2013 Wiley Periodicals, Inc. Heteroatom Chem 24:221–225, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/hc.21086