ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Electrophilic 5-endo-trig Cyclizations of 2-Silyl-3-alkenols. A Stereoselective Route to Polysubstituted Tetrahydrofurans. -The scope and limitations of the 5-endo-trig-like cyclization of 9 2-silyl-3-alkenols, e.g. (I), to give tetrahydrofurans, e.g. (III), is investigated. The regioselectivity seems to depend upon the substituent on the olefin and the geometry of the double bond. Styryl systems afford tetrahydrofurans in good yield with complete stereocontrol, whereas olefins of the type (Ie) and (If) favor the formation of selenylated olefins. -(ANDREY, O.; DUCRY, L.; LANDAIS, Y.; PLANCHENAULT, D.; WEBER, V.; Tetrahedron 53 (1997) 12, 4339-4352; Inst. Chim. Org., Univ. Lausanne, CH-1015 Lausanne-Dorigny, Switz.; EN)
ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
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