Recent research themes of Yonezawa laboratory
Chemistry of 1,8-diaroyl-2,7-dimethoxynaphthalenes and the related molecules
X-ray crystallographic analysis of 1,8-diaroyl-2,7-dimethoxynaphthalene (X = Cl);Nakaema, Okamoto, Noguchi and Yonezawa, Acta Cryst. 2007,E63,
o4120.
The fundamental chemistry on the aromatic ring assembly molecule shown in the above figure is being investigated.
Formation reaction of this type of derivative has been recently found in our laboratory.
In our laboratory, the members wish to elucidate the chemical behavior, structural characteristic, functionality, and other properties of this type of molecules, and intend to utilize these molecules according to our green chemistry policy.
The members believe the smart feature of this type of molecules surely brings about the novel attractive chemistry.
The members wish a lot of chemists have interest in these molecules and join or collaborate with.
The research spreads over the wide range of organic chemistry from basic reaction mechanism study to polymer synthesis and polymer material creation.
The study is roughly divided into following six fields.
(1) Clarification of mechanism for formation of these molecules: peri-aroylation of naphthalenes
Especially, elucidation of aroylation-dearoylation reversible behavior is focused.
(2) Development of the peri-aroylation as bond-formation synthetic tools
Realization of highly efficient introduction of ketonic carbonyl groups into crowded aromatic carbons, including the related compounds.
(3) Structural analysis of peri-aroylated naphthalenes and related molecules (crystal)
Clarification of molecular feature in solid is performed by X-ray crystallographic analysis
(4) Structural analysis of peri-aroylated naphthalenes and related molecules (solution)
Clarification of molecular feature in solution is performed spectroscopically, especially by valuable-temperature NMR analysis.
(5) Polymer synthesis bearing peri-aroylated naphthalene repeating units and related ones
Synthesis of condensation polymers having peri-aroylaphthalene moieties in the main chain is intended. This includes creation and development novel dual functional molecules having high potential for condensation polymerization.
(6) Fine molecular transformation starting with peri-aroylated naphthalenes and related molecules
Creation of functional molecules by various transformation and derivatization of peri-aroylnaphthalenes are targeted and elucidation of the functionality from the standpoint of structure-functionality correlationship analysis.