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4 results on '"Korehito Kato"'

1. Synthesis of Nine-Membered Carbocycles by the [4+3+2] Cycloaddition Reaction of Ethyl Cyclopropylideneacetate and Dienynes

Author

Shinichi Saito, Ryu Yamasaki, Kyotaro Maeda, Isao Azumaya, Korehito Kato, Minami Nakagawa, Hyuma Masu, and Takuya Kitamura

Subjects
Cyclopropanes, Molecular Structure, Ethyl cyclopropylideneacetate, chemistry.chemical_element, Acids, Carbocyclic, General Chemistry, General Medicine, Acetates, Crystallography, X-Ray, Catalysis, Cycloaddition, C c coupling, Nickel, chemistry, Cyclization, Organic chemistry, Molecule
Published
2010

2. Synthesis of monocyclic nine-membered compounds by the [4+3+2] cycloaddition-bond cleavage strategy

Author

Ryu Yamasaki, Daichi Hanitani, Shinichi Saito, Yuichiro Mutoh, and Korehito Kato

Subjects
Bicyclic molecule, Stereochemistry, Organic Chemistry, Ring (chemistry), Cleavage (embryo), Biochemistry, Cycloaddition, chemistry.chemical_compound, Hydroxylamine, chemistry, Yield (chemistry), Drug Discovery, Nickel catalyst, Bond cleavage
Abstract

Monocyclic nine-membered compounds were synthesized by the cleavage of the six-membered ring of the bicyclic compounds. Thus, the bicyclic compounds which consist of six- and nine-membered rings were synthesized by the Ni-catalyzed [4+3+2] cycloaddition, and the cleavage of the N–O bond, which was incorporated in the six-membered ring, proceeded in the presence of Mo(CO)6 to yield the monocyclic compound. On the other hand, the cleavage of the C–O bond proceeded efficiently in the presence of SmI2.

Published
2013

3. ChemInform Abstract: Synthesis of Monocyclic Nine-Membered Compounds by the [4 + 3 + 2] Cycloaddition - Bond Cleavage Strategy

Author

Ryu Yamasaki, Daichi Hanitani, Shinichi Saito, Yuichiro Mutoh, and Korehito Kato

Subjects
Bicyclic molecule, Chemistry, Stereochemistry, General Medicine, Ring (chemistry), Bond cleavage, Cycloaddition
Abstract

The Ni-catalyzed cycloaddition of substrates (I) and (VII) provides bicyclic systems which consist of oxazine and nine-membered ring moieties.

Published
2013

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