Syntheses of Some Alkoxy-, Dialkoxy-, and Alkoxyamino-sulfonium Ions and Their O -Methylene and N -Methylene PMR Chemical Shifts
1976; Oxford University Press; Volume: 49; Issue: 9 Linguagem: Inglês
10.1246/bcsj.49.2590
ISSN1348-0634
AutoresHiroshi Minato, Kei Yamaguchi, Kentaro Okuma, Michio Kobayashi,
Tópico(s)Synthesis and Biological Evaluation
ResumoAbstract Alkylation of sulfenates proved to be a good method for synthesis of alkoxysulfonium ion not obtainable by alkylation of sulfoxides. Dialkoxy- and alkoxyamino-sulfonium ions were prepared by alkylation of sulfinates and sulfinamides. Ethoxy- and methoxymorpholinophenylsulfonium tetraphenylborates were obtained as high-melting crystals, which almost quantitatively alkylated amines at room temperature. PMR spectra of RR′\overset⊕S–OCHAHBR″ and RR′\overset⊕S–N(R″)CHAHBR'″ were determined, and the relationship between δA–δB and (R,R′) were examined.
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