Cyclobutene formation accompanying an intramolecular Lewis acid-promoted spirocyclization of a propargylic silane
An intramolecular Lewis acid-promoted conjugate addition of a propargylic silane to a functionalized cyclohex-2-en-1-one resulted in part in the remarkable formation of a highly fused cyclobutene. The reaction was found to be dependent on the stoichiometr
AN N-ACYLIMINIUM ROUTE TO THE 8-AZABICYCLOOCTANE (TROPANE) AND THE 9-AZABICYCLONONANE RIG SYSTEM SYNTHESIS OF (+/-)-ANATOXIN-A
Propargyl and allyl silanes 20-22, readily prepared from succinimide, cyclize on dissolution in formic acid to azabicycles 23-25 in excellent yields.
Esch, Peter M.,Hiemstra, Henk,Klaver, Wim J.,Speckamp, W. Nico
p. 75 - 79
(2007/10/02)
INTRAMOLECULAR CYCLIZATIONS OF ALLYL- AND PROPARGYLSILANES
Allylsilanes of type 5 and propargylsilanes of type 13 undergo efficient cyclizations upon treatment with EtAlCl2 in toluene to afford stereoselectively functionalized hydrindanones of type 6 and spirodecanes of type 14.
Schinzer, Dieter,Solyom, Sandor,Becker, Marion
p. 1831 - 1834
(2007/10/02)
More Articles about upstream products of 112129-48-3