Y
Yasuharu Yoshimi
Researcher at University of Fukui
Publications - 66
Citations - 1042
Yasuharu Yoshimi is an academic researcher from University of Fukui. The author has contributed to research in topics: Decarboxylation & Catalysis. The author has an hindex of 18, co-authored 62 publications receiving 862 citations. Previous affiliations of Yasuharu Yoshimi include Osaka Prefecture University & University of Wisconsin-Madison.
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Journal ArticleDOI
Decarboxylative reduction of free aliphatic carboxylic acids by photogenerated cation radical.
TL;DR: The decarboxylation of free carboxylic acids was effected by a photogenerated cation radical of phenanthrene to yield the reduction product in the presence of a thiol, which provides an alternative method to the Barton decar boxylation procedure for aliphatic acids such as N-Boc amino acids.
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Inter- and Intramolecular Addition Reactions of Electron-Deficient Alkenes with Alkyl Radicals, Generated by SET-Photochemical Decarboxylation of Carboxylic Acids, Serve as a Mild and Efficient Method for the Preparation of γ-Amino Acids and Macrocyclic Lactones
Yasuharu Yoshimi,Miho Masuda,Tomoyuki Mizunashi,Keisuke Nishikawa,Kousuke Maeda,Nobumasa Koshida,Tatsuya Itou,Toshio Morita,Minoru Hatanaka +8 more
TL;DR: Inter- and intramolecular additions of alkyl radicals, generated by SET photochemical decarboxylation reactions of free carboxylic acids, to electron-deficient alkenes take place under mild conditions as part of efficient routes for the formation of N-Boc gamma-amino acids and macrocyclic lactones.
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Use of chirally modified zeolites and crystals in photochemical asymmetric synthesis.
Kenneth C. W. Chong,Jayaraman Sivaguru,Tetsuya Shichi,Yasuharu Yoshimi,Vaidhyanathan Ramamurthy,John R. Scheffer +5 more
TL;DR: Three different approaches to asymmetric induction in the cis-to-trans photoisomerization of a number of 1-benzoyl-2,3-diphenylcyclopropane derivatives are reported, and evidence is presented that it is the fixed orientation of the benzoyl group with respect to the cyclopropane ring that controls enantioselectivity in the crystalline state.
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Radical photocyclization route for macrocyclic lactone ring expansion and conversion to macrocyclic lactams and ketones.
Keisuke Nishikawa,Yasuharu Yoshimi,Kousuke Maeda,Toshio Morita,Ichiro Takahashi,Tatsuya Itou,Sho Inagaki,Minoru Hatanaka +7 more
TL;DR: A new method for the synthesis of macrocyclic lactones, lactams, and ketones, which utilizes photoinduced intramolecular radical cyclization reactions of substrates containing tethered carboxylic acids and α,β-unsaturated carbonyl moieties, has been uncovered.
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Decarboxylative photosubstitution of dicyanobenzenes with aliphatic carboxylate ions
TL;DR: In this paper, the photoreaction of dicyanobenzenes with aliphatic carboxylate ions afforded alkylcyanobenenes via decarboxylative substitution.