A
Akitoshi Ogata
Researcher at University of Tokyo
Publications - 11
Citations - 80
Akitoshi Ogata is an academic researcher from University of Tokyo. The author has contributed to research in topics: Allylic rearrangement & Stereoselectivity. The author has an hindex of 5, co-authored 11 publications receiving 77 citations. Previous affiliations of Akitoshi Ogata include Tokyo University of Agriculture and Technology.
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Transformation of alkynyl sulfones into alkynylphosphonates with trialkyl phosphites
TL;DR: In this paper, 1-Alkynylphosphonates were obtained in good to high yields by simple heating of 1-alkynyl sulfones with trialkyl phosphites.
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Titanocene(II)-promoted stereoselective alkenylation utilizing (Z)-alkenyl sulfones.
TL;DR: This alkenylation system is also applicable to polar C=O bonds; the simple mixing of carbonyl compounds, (Z)-alkenyl methyl sulfones, and the titanocene(II) reagent formed allylic alcohols.
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Titanocene(II)‐Promoted Cross‐Coupling of Unsaturated Compounds
TL;DR: Vinyl pivalate in the presence of the titanocene(II) reagent Cp2Ti[P(OEt)3]2 reacts both with nonpolar C≡C triple bonds and with polar C=O double bonds, to produce conjugated dienes and allylic alcohols, respectively as mentioned in this paper.
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Titanocene(II)‐Promoted Multicomponent Reactions Utilizing Alkynyl Sulfones, Alkenyl Sulfones, and Carbonyl Compounds: A Novel Method for the Synthesis of Vinylallenes
TL;DR: Titanocene(II)-promoted cross coupling of alkynyl- and (Z)-alkenyl sulfones affords alpha-(phenylsulfonyl)alkenyltitanium species that generate titanium vinylvinylidene complexes, which react with carbonyl compounds in one pot to produce substituted vinylallenes with complete stereoselectivity.
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Regio- and stereoselective preparation of dienylcarboxylic acids and dienylphosphonic esters using a (Z)-alkenyl sulfone–titanocene(II) system
TL;DR: Titanocene(II)-promoted alkenylation of functionalized alkynes with (Z)-alkenyl sulfones proceeded with high regio-and stereoselectivity to produce functionalized dienes as mentioned in this paper.