M. P. Yeh, Chia-Jung Liang, Chern-Wei Fan
Oct 25, 2012
Citations
0
Influential Citations
16
Citations
Journal
The Journal of organic chemistry
Abstract
The FeCl(3)-promoted synthesis of 2-azaspiro[4.6]undec-7-ene rings proceeds via ring expansion/cyclization/chlorination of N-tosyl-N-(3-arylpropargyl)-tethered 6-methylbicyclo[4.1.0]heptan-2-ols. This azaspirocyclic ring skeleton can also be obtained in one pot from the tert-butyldimethylsilyl-protected N-tosyl-N-(3-arylpropargyl)-tethered 3-methylcyclohex-2-en-1-ols and diethylzinc/diiodomethane.