cheminform abstract: organophosphorus compounds. part 18. the reaction of lawesson′s reagent with...
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1999 organo-phosphorus compounds, nonmetal heterocycles
organo-phosphorus compounds, nonmetal heterocyclesS 0087
19 - 187Organophosphorus Compounds. Part 18. The Reaction of Lawesson’sReagent with Trihydroxy Compounds. — Lawesson‘s reagent (IIa) aswell as its phenoxy-analogue (IIb) react with pyrogallol (I) and trihydroxyan-thracene (VII) to furnish phosphorus-heterocycles (III) and (VIII), respectively.The structure of these products is established by spectroscopic methods andchemical correlations. Moreover, the reaction of hydroquinone (IX) withLawesson‘s reagent is reinvestigated. — (SHABANA, R.; BOULOS, L. S.;SHAKER, Y. M.; Heteroat. Chem. 10 (1999) 1, 25-30; Natl. Res. Cent., Dokki,Cairo 12622, Egypt; EN)
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