Masataka Umetani

Double Ring Expansion from an Aromatic [18]Porphyrin(1.1.1.1) to an Antiaromatic [20]Porphyrin(2.1.2.1)

Masataka Umetani, Takayuki Tanaka, Taeyeon Kim et al. · Angewandte Chemie International Edition · 2016 · 40 citations

Conjugated double helices<i>via</i>self-dimerization of α,α′-dianilinotripyrrins

Masataka Umetani, Takayuki Tanaka, Atsuhiro Osuka · Chemical Science · 2018 · 32 citations · Full text

Synthesis of Di<i>‐peri</i>‐dinaphthoporphyrins by PtCl₂‐Mediated Cyclization of Quinodimethane‐type Porphyrins

Masataka Umetani, Koji Naoda, Takayuki Tanaka et al. · Angewandte Chemie International Edition · 2016 · 29 citations

Organic Charge-transfer Compound, Inorganic Chemistry, Quinodimethane-type Porphyrins +10

5,20-Diheterohexaphyrins: metal-template-free synthesis and aromaticity switching

Masataka Umetani, Jinseok Kim, Takayuki Tanaka et al. · Chemical Communications · 2019 · 27 citations

Rational Synthesis of 5,10-Diazaporphyrins via Nucleophilic Substitution Reactions of α,α′-Dibromotripyrrin and Dihydrogenation to Give 5,10-Diazachlorins

Masataka Umetani, Gakhyun Kim, Takayuki Tanaka et al. · The Journal of Organic Chemistry · 2020 · 13 citations