Diastereoselective Intramolecular Additions of Allyl- and Propargylsilanes to Iminium Ions: Synthesis of Cyclic and Bicyclic Quaternary Amino Acids
作者:Santos Fustero、Natalia Mateu、Antonio Simón-Fuentes、José Luis Aceña
DOI:10.1021/ol1010246
日期:2010.7.2
Chiral imino lactones derived from (R)-phenylglycinol containing an allyl- or propargyltrimethylsilyl group in the side chain readily cyclized in the presence of acidic reagents to afford spirocyclic compounds with high diastereoselectivity. Removal of the chiral auxiliary produced 2-substituted 1-aminocycloalkanecarboxylic acids, whereas further cyclizations by means of metathesis or hydroamination reactions led to bicyclic derivatives of pipecolic acid and proline.
Cyclobutene Formation Accompanying an Intramolecular Lewis Acid-Promoted Spirocyclization of a Propargylic Silane
作者:J Spence
DOI:10.1016/00404-0399(50)1115x-
日期:1995.7.31
Esch, Peter M.; Hiemstra, Henk; Klaver, Wim J., Heterocycles, 1987, vol. 26, # 1, p. 75 - 79
作者:Esch, Peter M.、Hiemstra, Henk、Klaver, Wim J.、Speckamp, W. Nico
DOI:——
日期:——
Intramolecular cyclizations of allyl- and propargylsilanes
作者:Dieter Schinzer、Sándor Sólyom、Marion Becker
DOI:10.1016/s0040-4039(00)94749-x
日期:1985.1
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 spiro[4,5]decanes of type 14.