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Synthesis 1995; 1995(6): 693-698
DOI: 10.1055/s-1995-3979
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Convenient One-Pot Synthesis of Symmetrical Xanthenes

Lajos Novák, Péter Kovács, György Pirok, Pál Kolonits, Éva Szabó, Jenő Fekete, Viktor Weiszfeiler, Csaba Szántay*
  • *Institute for Organic Chemistry, Technical University, H-1521 Budapest, Gellért tér 4, Hungary, Fax +36(1)4633297; E-mail: SZANTAY@CH.BME.HU; Central Research Institute for Chemistry, H-1525 Budapest, P.O.B. 17, Hungary
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Publication Date:
31 December 2000 (online)

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A new method is described for the preparation of symmetrically substituted xanthenes 12. They were obtained by consecutive rearrangements and intramolecular cyclizations of allyl aryl ethers 3 formed in situ from hydroquinone derivatives 1 and methallyl alcohol (2).

hydroquinone - methallyl alcohol - allyl aryl ether - rearrangement - cyclization