Studies on the oxidation of hydrazones with iodine and with phenylselenenyl bromide in the presence of strong organic bases; an improved procedure for the synthesis of vinyl iodides and phenyl-vinyl selenides
The oxidation of hydrazones by iodine in the presence of strong organic bases (guanidines) has been studied. Improved yields of vinyl iodides can be obtained by inverse addition using dry solvents and with a final heating period where appropriate. The reaction has been extended to various dihydrazones with interesting results.
A convenient hydroiodination of alkynes using I2/PPh3/H2O and its application to the one-pot synthesis of trisubstituted alkenes via iodoalkenes using Pd-catalyzed cross-coupling reactions
作者:Shin-ichi Kawaguchi、Yuhei Gonda、Haruna Masuno、Huệ Thị Vũ、Kotaro Yamaguchi、Hiroyuki Shinohara、Motohiro Sonoda、Akiya Ogawa
DOI:10.1016/j.tetlet.2014.10.039
日期:2014.12
A facile hydroiodination of alkynes using readily-available reagents such as I2, PPh3, and H2O has been developed. This is extended to the one-pot synthesis of trisubstituted alkenes from alkynes via iodoalkenes using Pd-catalyzed cross-coupling and related methods such as the Suzuki–Miyaura cross-coupling, Sonogashira cross-coupling reaction, and Mizoroki–Heck reaction.
BARTON, DEREK H. R.;BASHIARDES, GEORGE;FOURREY, JEAN-LOUIS, TETRAHEDRON, 44,(1988) N 1, 147-162
作者:BARTON, DEREK H. R.、BASHIARDES, GEORGE、FOURREY, JEAN-LOUIS
DOI:——
日期:——
An Intriguing Hydroiodination of Alkenes and Alkynes with Titanium Tetraiodide
作者:Makoto Shimizu、Tadahiro Toyoda、Toru Baba
DOI:10.1055/s-2005-872679
日期:——
Olefins and acetylenes were hydroiodinated with titaniumtetraiodide to give alkyl iodides, vinyl iodides, and alkyl diiodides in good yields. In the presence of acetals, the reaction gave intriguing C-C bond-forming products.
烯烃和乙炔用四碘化钛进行氢碘化,以良好的收率得到烷基碘、乙烯基碘和烷基二碘。在缩醛的存在下,该反应产生了有趣的 CC 键形成产物。