Abstract
An efficient procedure has been proposed for the synthesis of quasiphosphonium salts, 2,2-dialkyl-6-chloro-4-phenyl-2H-1,2-benzoxaphosphinin-2-onium chlorides, via cyclization of dialkyl[2-(5-chloro-2-hydroxyphenyl)-2-phenylethenyl]phosphine oxides under the action of thionyl chloride.
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Original Russian Text © D.A. Tatarinov, D.M. Kuznetsov, V.F. Mironov, 2014, published in Zhurnal Organicheskoi Khimii, 2014, Vol. 50, No. 4, pp. 555–557.
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Tatarinov, D.A., Kuznetsov, D.M. & Mironov, V.F. Intramolecular cyclization of dialkyl[2-(5-chloro-2-hydroxyphenyl)-2-phenylethenyl]phosphine oxides by the action of thionyl chloride. Russ J Org Chem 50, 544–546 (2014). https://doi.org/10.1134/S1070428014040174
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DOI: https://doi.org/10.1134/S1070428014040174