Synthesis of branched carbasugars via photooxygenation and manganese(III) acetate free radical cyclization


Altun Y. , Dogan S. D. , BALCI M.

TETRAHEDRON, cilt.70, ss.4884-4890, 2014 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 70 Konu: 33
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.tet.2014.05.069
  • Dergi Adı: TETRAHEDRON
  • Sayfa Sayısı: ss.4884-4890

Özet

Transformation of cyclohexa-1,3- and 1,4-dienes to carbasugars is described. Photooxygenation of dienes gave bicyclic endoperoxides, which were reduced with thiourea to the corresponding 1,4-dials with cis-configuration. Lactonization of the remaining double bond by oxidative addition of acetic acid to the double bond in the presence of Mn(OAc)(3) followed by lactone ring-opening reaction gave the target branched carbasugars. (C) 2014 Elsevier Ltd. All rights reserved.