136053-40-2Relevant academic research and scientific papers
Regiospesific Synthesis of Polysubstituted Phenols via the Palladium-Catalyzed Enyne-Diyne [4 + 2] Cross-Benzannulation Pathway
Gevorgyan, Vladimir,Quan, Long Guo,Yamamoto, Yoshinori
, p. 1244 - 1247 (1998)
An efficient method for the synthesis of polysubstituted phenols via the consecutive palladium-catalyzed enyne-diyne [4 + 2] cross-benzannulation reaction and subsequent deprotection step was developed. In all cases, the reactions proceeded in a regiospecific manner affording the corresponding polysubstituted phenols in good overall yields. It was shown that a more useful one-pot methodology could be applied to the synthesis of polysubstituted phenols 4a-e. The synthetically useful p-methoxyphenylacetylene 13 and its monosilylated derivative 12 were smoothly prepared via exhaustive or partial desilylation of bis-silylated aromatic adduct 8c, respectively.
Regioselective Synthesis and Polymerization of Substituted o-Trimethylsilylphenylacetylenes
Yamaguchi, Masahiko,Tsukamoto, Yukiharu,Ikeura, Chinatsu,Nakamura, Shigeo,Minami, Toru
, p. 1259 - 1262 (2007/10/02)
Substituted o-trimethylsilylphenylacetylenes were synthesized by o-metalation of phenylacetylenes with complex reagent of butyllithium and t-BuOK, and were polymerized in the presence of a tungsten catalyst giving deeply colored poly(arylacetylene)s.Relationship between the structure of monomers and polymers was examined.
