Hirotaka Izawa

Optically Active Axially Chiral Anilide and Maleimide Derivatives as New Chiral Reagents:  Synthesis and Application to Asymmetric Diels−Alder Reaction

Osamu Kitagawa, Hirotaka Izawa, Kiyonobu Sato et al. · The Journal of Organic Chemistry · 1998 · 127 citations

Cross-coupling Reaction, Derivatives, Engineering +13

An efficient synthesis of optically active axially chiral anilide and its application to iodine-mediated asymmetric Diels-Alder reaction

Osamu Kitagawa, Hirotaka Izawa, Takeo Taguchi et al. · Tetrahedron Letters · 1997 · 78 citations

Novel Organocatalysts, Engineering, Chiral Anilide +9

Stereoselective synthesis of an optically active axially chiral lactam and its reaction with some electrophiles

Masao Fujita, Osamu Kitagawa, Hirotaka Izawa et al. · Tetrahedron Letters · 1999 · 41 citations

Engineering, Organic Chemistry, Catalysis +7

Synthesis of Optically Active 5-Substituted-2-pyrrolidinone Derivatives Having Atropisomeric Structure and 3,5-<i>Cis</i>-Selective Reaction of Their Enolates with Electrophiles

Masao Fujita, Osamu Kitagawa, Yoichiro Yamada et al. · The Journal of Organic Chemistry · 2000 · 38 citations

Pure Forms, Engineering, Their Enolates +10