Intramolecular [2 + 2] cycloadditions of alkoxyketenes and alkoxyketeniminium salts
作者:Barry B. Snider、Raymond A. H. F. Hui
DOI:10.1021/jo00225a038
日期:1985.12
SNIDER, B. B.;HUI, R. A. H. F., J. ORG. CHEM., 1985, 50, N 25, 5167-5176
作者:SNIDER, B. B.、HUI, R. A. H. F.
DOI:——
日期:——
Asymmetric catalysis by chiral titanium perchlorate for carbonyl-ene cyclization
作者:Koichi Mikami、Eiji Sawa、Masahiro Terada
DOI:10.1016/s0957-4166(00)80036-1
日期:1991.1
The chiral binaphthol-derived titanium perchlorate (or triflate) is shown to serve efficiently as an asymmetric catalyst for the ene cyclization of type 3, 4}exo,exo and 2, 4}exo',exo involving alpha-alkoxy aldehyde as an internal enophile to afford the 6- and 7-membered cyclic ethers in high enantiomeric purity.
Intramolecular [2 + 2] cycloadditions of ketenes
作者:Barry B. Snider、Raymond A. H. F. Hui、Yashwant S. Kulkarni
DOI:10.1021/ja00293a074
日期:1985.4
Synthese d'oxa-2bicyclo [3.2.0] heptanes et d'oxa-2bicyclo [4.2.0] octanes a partir d'acides alcenyloxy acetiques
合成这些 d'oxa-2bicyclo [3.2.0] 庚烷和 d'oxa-2bicyclo [4.2.0] 辛烷 a partir d'acides alcenyloxy acetiques