Hiroyuki Hirashima

Facile Synthesis of Cyclic Polyphenylenes by Consecutive Inter- and Intramolecular Cycloadditions of ortho-, meta-, and para-Phenylene-Tethered Triynes

Takanori Shibata, Masako Fujimoto, Hiroyuki Hirashima et al. · Synthesis · 2012 · 175 citations

Asymmetric Catalysis, Consecutive Inter-, Engineering +15

Catalytic Enantioselective Synthesis of Chiral Tetraphenylenes: Consecutive Inter‐ and Intramolecular Cycloadditions of Two Triynes

Takanori Shibata, Tatsuya Chiba, Hiroyuki Hirashima et al. · Angewandte Chemie International Edition · 2009 · 96 citations

Cross-coupling Reaction, Engineering, Phenylene-bridged 1,5-Diyne Moiety +15

Cationic Ir(I)-Catalyzed sp³ C-H Bond Alkenylation of Ureas with Alkynes for the Synthesis of 2,3-Disubstituted Indoles

Takanori Shibata, Hiroyuki Hirashima, Mitsugu Kasagawa et al. · Synlett · 2011 · 40 citations

2,3-Disubstituted Indoles, Engineering, Biochemistry +12

Chiral Rh‐ and Ir‐catalyzed intramolecular cycloaddition of hexaynes for the construction of new chiral skeletons

Takanori Shibata, Tatsuya Chiba, Hiroyuki Hirashima et al. · Heteroatom Chemistry · 2011 · 33 citations

Chiral 1,1′, Ir‐catalyzed Intramolecular Cycloaddition, Engineering +15

Enantioselective construction of new chiral cyclic scaffolds using [2 + 2 + 2] cycloaddition

Takanori Shibata, Toshifumi Uchiyama, Hiroyuki Hirashima et al. · Pure and Applied Chemistry · 2011 · 23 citations · Full text

Chiral Tripodal Compounds, Novel Organocatalysts, Engineering +10