18895-06-2Relevant articles and documents
The Reactions of 4,5-Dehydrotropone with 4-Phenyloxazols
Nakazawa, Tomoo,Ishihara, Mariko,Jinguji, Mamoru,Miyatake, Ryuta,Sugihara, Yoshikazu,Murata, Ichiro
, p. 8421 - 8424 (1994)
4,5-Dehydrotropone reacted with 4-phenyl-, 5-methyl-, and 2,5-dimethyl-4-phenyl-oxazol to give, involving facile loss of benzonitrile from the corresponding Diels-Alder adducts, furotropone and its 1-methyl and 1,3-dimethyl derivative, respectively.Protonation of furotropones yielded delocalized 6-hydroxy-3-oxaazulenium ions.