Cyclocondensations of amidophenacylation products of triphenylphosphoranylideneacetonitrile

SY Panchishin, OB Smolii, AN Chernega…

Index: Panchishin; Smolii; Chernega; Rusanov; Drach Russian Journal of General Chemistry, 2005 , vol. 75, # 4 p. 518 - 522

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Abstract

Abstract When heated in polyphosphoric acid, the products of amidophenacylation of the available triphenylphosphoranylideneacetonitrile undergo the Robinson-Gabriel cyclization followed by other transformations. Treatment of the resulting mixture with sodium perchlorate gave quaternary phosphonium salts of two types, viz.(2, 5-diaryl-1, 3-oxazol-4-ylmethyl) triphenylphosphonium perchlorates and [2-aryl-5-hydroxynaphtho [2, 1-d][1, 3] oxazol-4-yl ...