Bis-alkylation of dimetallated phenylsulfonylmethyl triflone. A n+1 annulation strategy for synthesis of cyclic vinyl sulfones.
1992; Elsevier BV; Volume: 33; Issue: 6 Linguagem: Inglês
10.1016/s0040-4039(00)77705-7
ISSN1873-3581
Autores Tópico(s)Synthetic Organic Chemistry Methods
ResumoAbstract Bis-metallation of phenylsulfonylmethyl triflone 4b produces a geminal dianion which can be dialkylated to afford α-phenylsulfonyl triflones. Treatment of these compounds with DBU affords vinyl sulfones which can be isomerized to allyl sulfones.
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