Here we report the utilization of commercially available p-toluenesulfonhydrazide as a new nucleophilic reagent in displacement reactions with suitable halides for an improved, general synthesis of sulfones. Good results are obtained with primary, secondary, allylic, benzylic, and aromatic halides activated by withdrawing groups.
Pyrrolopyrazine-Spirocyclic piperidine amides as modulators of ion channels
申请人:Vertex Pharmaceuticals Incorporated
公开号:US20150174127A1
公开(公告)日:2015-06-25
The invention relates to pyrrolopyrazine-spirocyclic piperidine amide compounds useful as inhibitors of ion channels. The invention also provides pharmaceutically acceptable compositions comprising the compounds of the invention and methods of using the compositions in the treatment of various disorders.
[EN] CYCLOHEXANE AMINE COMPOUND AND APPLICATION THEREOF FOR ANTI-SCHIZOPHRENIA DRUGS<br/>[FR] COMPOSÉ CYCLOHEXANE AMINE ET SON APPLICATION POUR DES MÉDICAMENTS ANTI-SCHIZOPHRÉNIE
Sulfonylation of organometallic reagents with arenesulfonyl fluorides: a simple one-step synthesis of sulfones
作者:Leah L. Frye、Eileen L. Sullivan、Kevin P. Cusack、John M. Funaro
DOI:10.1021/jo00028a053
日期:1992.1
Sulfonylation of organometallic reagents was accomplished with arenesulfonyl fluorides to provide a wide variety of alkylaryl- and diaryl sulfones. Organolithium and diorganocopper lithium reagents react smoothly with arenesulfonyl fluorides to give sulfones in high yields. Alkyl Grignard reagents often lead to mixtures of monosulfonylated and disulfonylated products. However, allylmagnesium chloride and phenylmagnesium chloride provide the corresponding sulfones in excellent yields. Organocopper reagents were also found to yield sulfones upon treatment with arenesulfonyl fluorides. By utilizing this methodology, synthetically useful alkyl, (trimethylsilyl)methyl, and allyl sulfones are easily prepared in high yields.