Abstract
Substituted (8-aminobenzyl)dinaphthodioxaphosphocine 8-oxides were prepared in a two-step process. The first step of the reaction is one-pot synthesis of α-aminophosphonates by the reaction of aldehydes, amines, and trialkyl phosphite in the presence of ceric ammonium nitrate. The second step is cyclization of α-aminophosphonates with bis(2-hydroxy-1-naphthyl)methane in the presence of a catalytic amount of p toluenesulphonic acid under reflux conditions. Their structures were established by elemental analyses, IR, 1H, 13C, 31P NMR, and mass spectral data.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, 1574–1580, September, 2007.
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Babu, M.F.S., Babu, B.H., Reddy, K.R.K.K. et al. Syntheses of substituted 8-(aminobenzyl)dinaphthodioxaphosphocine 8-oxides. Chem Heterocycl Comp 43, 1336–1341 (2007). https://doi.org/10.1007/s10593-007-0203-x
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DOI: https://doi.org/10.1007/s10593-007-0203-x