An unusual reaction of Lawesson's reagent with 1,8-diketones: A synthesis of fused 1,4-dithiins and thiophenes


Ozturk T.

TETRAHEDRON LETTERS, cilt.37, ss.2821-2824, 1996 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 37 Konu: 16
  • Basım Tarihi: 1996
  • Doi Numarası: 10.1016/0040-4039(96)00396-6
  • Dergi Adı: TETRAHEDRON LETTERS
  • Sayfa Sayıları: ss.2821-2824

Özet

Reaction of 1,8-diketones 3 with Lawesson's reagent 8 resulted in the formation of five and six-membered rings 5-7, 18, depending on the nature of the substituents. Product 6 is converted in two steps to the unsymmetric 'ET' analogue 20, containing an extra double bond. Copyright (C) 1996 Elsevier Science Ltd