Intramolecular iodine-mediated oxygen transfer from nitro groups to C≡C bonds
Highly regioselective oxygen transfer from nitro groups to C≡C bonds has been achieved by employment of iodine monochloride or molecular iodine. The precursors are heterocyclic, aromatic or acyclic compounds, each bearing a nitro group ortho to an interna
Cikotiene, Inga
experimental part
p. 2766 - 2773
(2012/06/30)
Unexpected regioselectivity in cycloisomerization of 2-alkynyl-3-nitro- thiophenes
The intramolecular cycloizomerization of 2-alkynyl-3-nitrothiophenes was catalyzed by AuCl3 or CF3CO2Ag to produce the corresponding thieno[3,2-c]isoxazoles bearing carbonyl functionality in position 3 instead of expected