synthesized by ring closing metathesis (RCM) of sulfonates. The resulting α,β-unsaturated sultones act as dienophiles in intermolecular Diels-Alder reactions. A first cyclic sulfate formation throughRCM has been discovered, and a rapid access to p-lactams fused to a sultam moiety of variable ring size was developed from inexpensive, commercially available starting materials using RCM as the key operation
Reactivity of unsaturated sultones synthesized from unsaturated alcohols by ring-closing metathesis. Application to the racemic synthesis of the originally proposed structure of mycothiazole
作者:Alexandre Le Flohic、Christophe Meyer、Janine Cossy
DOI:10.1016/j.tet.2006.07.010
日期:2006.9
Unsaturated sultones have been synthesized from various primary or secondary alkenols by ring-closing metathesis of the corresponding unsaturated sulfonates. By treatment with a strong base, beta,gamma-unsaturated sultones can be metalated and subsequently alkylated with electrophiles. When iodomethylmagnesium chloride was selected as the electrophile, seven-membered ring beta,gamma-unsaturated sultones were converted into homoallylic conjugated (Z)-dienols. This methodology was applied to the racemic synthesis of the originally proposed structure of the marine natural product mycothiazole. (c) 2006 Elsevier Ltd. All rights reserved.
Synthesis and properties of sulfoalkenyl amides
作者:I. M. Zaks、B. S. �l'ynov、V. M. Zhulin、A. M. Moiseenkov
DOI:10.1007/bf01141714
日期:1984.5
SEMENOVSKIJ A. V.; POLUNIN E. V.; ZAKS N. M.; MOISEENKOV A. M., IZV. AN CCCP. CEP. XIM., 1979, HO 6, 1327-13331
作者:SEMENOVSKIJ A. V.、 POLUNIN E. V.、 ZAKS N. M.、 MOISEENKOV A. M.