133619-21-3Relevant articles and documents
BF3-promoted cyclization reaction of imines and salicylaldehyde with silyl enol ethers: unexpected formation of dioxaspiro compounds
Xin, Yong,Jiang, Huiling,Zhao, Jingwei,Zhu, Shizheng
, p. 9315 - 9319 (2008)
Unexpected spiro cyclic products were formed from the reaction of imines and salicylaldehyde with silyl enol ethers in the presence of BF3·OEt2. Different kinds of dioxaspiro products were afforded depending on the nature of starting