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Sulfonium Bromide (sulfonium + bromide)

Distribution by Scientific Domains
Chemistry100%

Selected Abstracts

A Rapid and Efficient Stereoselective Synthesis of (Z)- and (E)-Allyl Bromides from Baylis,Hillman Adducts Using Bromo(dimethyl)sulfonium Bromide,

HELVETICA CHIMICA ACTA, Issue 7 2006
Biswanath Das
Abstract Treatment of Baylis,Hillman adducts 1 with bromo(dimethyl)sulfonium bromide, Br(Me2)S+Br,, in MeCN was found to stereoselectively afford (Z)- and (E)-allyl bromides 2. The reaction is rapid at room temperature, high-yielding, and highly stereoselective. [source]

Highly Regioselective Ring Opening of Epoxides and Aziridines Using (Bromodimethyl)sulfonium Bromide.

CHEMINFORM, Issue 40 2006
Biswanath Das
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]

(Bromodimethyl)sulfonium Bromide: An Inexpensive Reagent for the Solvent-Free, One-Pot Synthesis of ,-Aminophosphonates.

CHEMINFORM, Issue 23 2005
Sucheta Kudrimoti
No abstract is available for this article. [source]

A Rapid and Efficient Stereoselective Synthesis of (Z)- and (E)-Allyl Bromides from Baylis,Hillman Adducts Using Bromo(dimethyl)sulfonium Bromide,

HELVETICA CHIMICA ACTA, Issue 7 2006
Biswanath Das
Abstract Treatment of Baylis,Hillman adducts 1 with bromo(dimethyl)sulfonium bromide, Br(Me2)S+Br,, in MeCN was found to stereoselectively afford (Z)- and (E)-allyl bromides 2. The reaction is rapid at room temperature, high-yielding, and highly stereoselective. [source]

Indolizines, triazolo[4,3- a]pyridines, benzimidazo[1,2- d]oxadiazoles, and pyrazolo[1,5- c]triazoles via nitrogen and sulfur ylides

HETEROATOM CHEMISTRY, Issue 6 2004
Kamal M. Dawood
The pyridinium salts 2a,b reacted with dimethyl acetylenedicarboxylate (DMAD) to give the indolizine derivatives 6a,b. Pyridinium salts 2a,b also reacted with pyrazole-5-diazonium salt to afford the hydrazonoyl bromides 8a,b, which on treatment with aqueous ethanolic sodium carbonate furnished the 8aH -1,2,4-triazolo[4,3- a]pyridine 10. When sulfonium bromide 11 was treated with nitrous acid and with pyrazole-5-diazonium salt, it afforded the new hydroximoyl and hydrazonoyl halides 12 and 17, respectively. Compound 12 reacted with 2-methylthiobenzimidazole to furnish benzimidazo[1,2- d]-1,2,4-oxadiazole derivative 14. Treatment of either 12 with 3-phenyl-5-aminopyrazole or 17 with triethylamine resulted in the formation of the same product: pyrazolo[1,5- c]-1,2,4-triazole derivative 16. © 2004 Wiley Periodicals, Inc. Heteroatom Chem 15:432,436, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20037 [source]