17190-36-2Relevant articles and documents
1,2-Derivatives of Acenaphthylene. XIV. Synthesis and Methoxydehalogenation of Acetals of 5-Halo-1,2-Acenaphthenediones
Anikin,Samburskii,Mazepa
, p. 234 - 238 (2007/10/03)
On heating 5-bromo or 5-chloro-1,2-acenaphthenediones with 2,2-dimethylpropanediol under conditions of acid catalysis the former compound does not afford acetals of both carbonyls but only a mixture of isomeric acetals of a single carbonyl. Under treatment of the individual above acetals with sodium methoxide the five-membered cycle is retained, and methoxydehalogenation occurs with the isomer containing halogen in para-position with respect to carbonyl group.