Lewis acid-mediated ring expansion reaction of 2,3-methanochromanones withsilyl enol ethers

Authors
Sugita, Y Kawai, K Hosoya, H Yokoe, I
Citation
Y. Sugita et al., Lewis acid-mediated ring expansion reaction of 2,3-methanochromanones withsilyl enol ethers, HETEROCYCLE, 51(9), 1999, pp. 2029-2033
Citations number
16
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
HETEROCYCLES
ISSN journal
03855414 → ACNP
Volume
51
Issue
9
Year of publication
1999
Pages
2029 - 2033
Database
ISI
SICI code
0385-5414(19990901)51:9<2029:LARERO>2.0.ZU;2-1
Abstract
In the presence of trimethylsilyl trifluoromethanesulfonate (TMSOTf), metha nochromanones easily reacted with silyl enol ethers to give the [3+2] cyclo adducts and the corresponding adducts in good yields.