The first application of the Friedländer reaction for the synthesis of [1,8]naphthyridine derivatives containing phosphorus
摘要:
The first 2,3-alkylenesubstituted [1,8]naphthyridines bearing a phosphorus moiety have been synthesised by the Friedlander annulations of 2-aminonicotinaldehyde 1 with 2-diphenylphosphoryl(thiophosphoryl)cyclopentanones 7-9.
Reaction of 3,3,5-trimethyl-2-chloro-1,2-oxaphospholene 2-oxide with grignard reagents, a convenient approach to the synthesis of dialkyl(diaryl)-(1-methyl-4-oxopent-2-yl)phosphine oxides
Friedländer reaction in the synthesis of 2-(phosphoryl)alkyl-substituted 1,6-naphthyridines
作者:Pavel S. Lemport、Georgy V. Bodrin、Andrey I. Belyakov、Pavel V. Petrovskii、Anna V. Vologzhanina、Edward E. Nifant’ev
DOI:10.1016/j.mencom.2009.11.002
日期:2009.11
First 2-(phosphoryl)alkyl-substituted 1,6-naphthyridines have been synthesized by the Friedlanderreaction between 4-amino-3-formylpyridine and phosphorus-containing ketones; their structures have been confirmed by 1H, 13C and 31P NMR spectroscopy and X-ray diffraction analysis.