SYNTHESIS, STRUCTURE AND USE OF FUNCTIONALIZED NAPHTHALENES
申请人:Brummond Key M.
公开号:US20130310558A1
公开(公告)日:2013-11-21
Methods for the synthesis and use of functionalized, substituted naphthalenes are described. The functionalized, substituted naphthalenes display useful properties including liquid crystals and fluorescence properties, such as solvatochromatic fluorescence, with high quantum yields, Stoke's shift, and show emission maxima that are significantly red-shifted.
A Cascade Approach to Naphthalene Derivatives from<i>o</i>-Alkynylbenzaldehydes and Enolizable Ketones via in-situ-Formed Acetals
作者:Seetharaman Manojveer、Rengarajan Balamurugan
DOI:10.1002/ejoc.201500497
日期:2015.7
o-alkynylbenzaldehydes and enolizable ketones. In situ acetal formation assists the condensation between o-alkynylbenzaldehydes and enolizable ketones to give chalcone derivatives under Bronsted acidic conditions. In situ acetal formation facilitates the reaction by increasing the electrophilicity of the carbonyl carbon of the o-alkynylaldehyde through oxonium ionformation, and also by enhancing the nucleophilicity
NHC Brønsted base-catalyzed transformations of isochromene derivatives: regulation of products by the structures of carbene catalysts
作者:Xing-Wen Fan、Ying Cheng
DOI:10.1039/c2ob26622a
日期:——
Two different transformations of α-(isochromen-1-yl)ketones catalyzed by NHC Brønsted bases are reported. In the presence of a triazole carbene, α-(isochromen-1-yl)ketones isomerized into β-(2-(aroylmethylene)phenyl)-α,β-unsaturated ketones in 38–88% yields, while the same reaction catalyzed by an imidazole carbene produced 1-aroylnaphthalene derivatives in 90–99% yields. This work not only provides
Methods for the synthesis and use of functionalized, substituted naphthalenes are described. The functionalized, substituted naphthalenes display useful properties including liquid crystals and fluorescence properties, such as solvatochromatic fluorescence, with high quantum yields, Stoke's shift, and show emission maxima that are significantly red-shifted.
Synthesis, structure and use of functionalized naphthalenes
申请人:Brummond Kay M.
公开号:US09102703B2
公开(公告)日:2015-08-11
Methods for the synthesis and use of functionalized, substituted naphthalenes are described. The functionalized, substituted naphthalenes display useful properties including liquid crystals and fluorescence properties, such as solvatochromatic fluorescence, with high quantum yields, Stoke's shift, and show emission maxima that are significantly red-shifted.