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Tetrabutylammonium Iodide (tetrabutylammonium + iodide)
Selected AbstractsCarbonyl Propargylation and Allenylation with 2-Propynyl Mesylates, Tin(IV) Iodide, and Tetrabutylammonium Iodide Controlled by Either a Steric Effect or Coordination Effect.CHEMINFORM, Issue 46 2006Yoshiro Masuyama Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Solvent-Free Efficient Synthesis of Symmetrical Isocyanurates by a Combination Catalyst: Sodium Saccharin and Tetrabutylammonium Iodide.CHEMINFORM, Issue 42 2004Firouz Matloubi Moghaddam Abstract For Abstract see ChemInform Abstract in Full Text. [source] Efficient Stereoselective Synthesis of Nitrocyclopropanes by the Oxidative Cyclization of Michael Adducts of Nitroolefins with Activated Methylene CompoundsADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 16 2008Renhua Fan Abstract An efficient oxidative cyclopropanation of the Michael adducts of nitroolefins with activated methylene compounds by the combination of iodobenzene diacetate and tetrabutylammonium iodide is reported. Highly functionalized nitrocyclopropanes are synthesized in moderate to good yields via the Michael addition and cyclopropanation with high diastereoselectivity and enantioselectivity under mild conditions. [source] A highly efficient synthesis of (Z)-1-aryl-2-silyl-1- stannylethenes and their conversion to (E)-2- arylethenyl-, (Z)-2-(2-pyridyl)ethenyl- and allenyl-silanesAPPLIED ORGANOMETALLIC CHEMISTRY, Issue 3 2007Takanori Endo Abstract A Pd(dba)2,P(OEt)3 combination allowed the silastannation of arylacetylenes, 1-hexyne or propargyl alcohols with tributyl(trimethylsilyl)stannane to take place at room temperature, producing (Z)-2-silyl-1-stannyl-1-substituted ethenes in high yields. Novel silyl(stannyl)ethenes were fully characterized by 1H-, 13C-, 29Si- and 119Sn-NMR as well as infrared and mass analyses. Treatment of a series of (Z)-1-aryl-2-silyl-1-stannylethenes and (Z)-1-(3-pyridyl)-2-silyl-1-stannylethene with hydrochloric acid or hydroiodic acid in the presence of tetraethylammonium chloride (TEACl) or tetrabutylammonium iodide (TBAI) led to the exclusive formation of (E)-trimethyl(2-arylethenyl)silanes with high stereoselectivity. A similar reaction of (Z)-1-(2-anisyl)-2-silyl-1-stannylethene also produced E -type trimethyl[2-(2-anisyl)ethenyl]silane, while (Z)-trimethyl [2-(2-pyridyl)ethenyl]silane was produced exclusively from (Z)-1-(2-pyridyl)-2-silyl-1-stannylethene. Protodestannylation of (Z)-1-[hydroxy(phenyl)methyl]-2-silyl-1-stannylethene with trifluoroacetic acid took place via the ,-elimination of hydroxystannane, providing trimethyl(3-phenylpropa-1,2-dienyl)silane quite easily. The destannylation products were also fully characterized. Copyright © 2007 John Wiley & Sons, Ltd. [source] | ||||||||||