Stereoselective formation of 1,2-diiodoalkenes and their application in the stereoselective synthesis of highly functionalised alkenes via Suzuki and Stille coupling reactions
作者:Nadine Hénaff、Andrew Whiting
DOI:10.1039/a906832e
日期:——
Treatment of an alkyne with iodine monochloride and sodium iodide at room temperature results in the formation of the thermodynamic (E)-diiodoalkene. The corresponding (Z)-diiodoalkene can also be produced, by treatment of the alkyne with iodine monochloride at −78 °C in the presence of tetraethylammonium iodide. Such 1,2-diiodoalkenes are useful for the synthesis of more functionalised alkenes by using either Stille or Suzuki cross-coupling protocols.
Facile Synthesis of <i>E</i>‐Diiodoalkenes: H<sub>2</sub>O<sub>2</sub>‐Activated Reaction of Alkynes with Iodine
作者:Alexander O. Terent'ev、Dmitry A. Borisov、Igor B. Krylov、Gennady I. Nikishin
DOI:10.1080/00397910701545171
日期:2007.9.1
activate iodine in the addition reaction with triple bonds. A facile and technologically straightforward procedure was developed for the synthesis of E‐diiodoalkenes based on the reaction of alkynes with an I2–H2O2 system in THF. Selective iodination of terminal and internal alkynes containing electron‐donating and electron‐withdrawing substituents afforded 16 E‐diiodoalkenes in yields up to 89%.
Reactions of terminal alkynes with iodine in methanol
作者:Victor L. Heasley、Dale F. Shellhamer、Lynn E. Heasley、David B. Yaeger、Gene E. Heasley
DOI:10.1021/jo01311a020
日期:1980.11
Stereoselective synthesis of either E- or Z-diiodoalkenes from alkynes using ICI and iodide
作者:Nadine Hénaff、Sarah K Stewart、Andrew Whiting
DOI:10.1016/s0040-4039(97)00920-9
日期:1997.6
Reaction of alkynes with ICI and an iodide source results in the stereoselective formation of diiodoalkenes in moderate to high yield, At r.t., the reaction is stereospecific, resulting in the formation of E-diiodoalkenes, however lowering the temperature and using a more soluble iodide source results in a stereoselective formation of the Z-diiodoalkenes. (C) 1997 Elsevier Science Ltd.