Takumi Tanaka

Concise trichlorination of methyl ketones using sodium hypochlorite pentahydrate

We report a practical and efficient method for the synthesis of trichloromethyl ketones from the corresponding methyl ketones via a two-step sequence involving trifluoroacetylation followed by selective chlorination. The key chlorination step proceeds under mild, weakly acidic co...

Multi‐Biomimetic Structural Colors Inspired by Pearls and Bird Feathers

ABSTRACT One‐dimensional photonic crystals (1D PCs) enable precise control of light–matter interactions and display stable structural colors. However, their optical performance critically depends on strict periodicity and nanometer‐scale control of thickness, necessitating comple...