112313-19-6Relevant articles and documents
Thermal Cycloaddition of N-Arylmaleimides to Phenols: the Convenient Synthesis of Bicyclooct-2-en-5-one and Tricyclo2,8>octan-2-one Derivatives from Phenols
Bryce-Smith, Derek,Gilbert, Andrew,McColl, Ian S.,Drew, Michael G. B.,Yianni, Paul
, p. 1147 - 1152 (2007/10/02)
Monohydric phenols undergo 2,5-thermal cycloaddition of N-substituted maleimides to give bicyclooct-2-en-5-ones.Homopolymers of the maleimides are also concurrently formed, except in the case of N-(2,6-dimethylphenyl)maleimide: this is the preferred addend and gave a 63percent yield of the 2,5-adduct as a mixture of exo and endo isomers.U.v. irradiation in acetone of the diester (16) derived from the endo adduct of phenol and N-phenylmaleimide gave the tricyclo2,8>octan-3-one (17) in quantitative yield.