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Your search keyword '"Masakazu Wakayama"' showing total 3 results
Start Over Author "Masakazu Wakayama" Topic ionic bonding
3 results on '"Masakazu Wakayama"'

1. Synthesis of enediyne model compounds producing toluene diradicals possessing a highly radical character via enyne–allene intermediates

Author

Hisao Nemoto, Masayuki Shibuya, Akira Shigenaga, Ichiro Suzuki, and Masakazu Wakayama

Subjects
Enyne, Chemistry, Allene, Radical, Organic Chemistry, Ionic bonding, Biochemistry, Combinatorial chemistry, Toluene, chemistry.chemical_compound, Drug Discovery, Enediyne, Molecule, Benzene
Abstract

Development of enediyne model compounds that produce dehydrotoluene diradicals under acidic media is described. The ionic character of the diradicals is shown to be avoided by the electron-withdrawing groups in the molecules both in benzene and MeOH.

Published
2000

2. Decarboxylative cycloaromatization of enediyne model compounds—mechanism of the radical and ionic pathway

Author

Ichiro Suzuki, Hisao Nemoto, Masayuki Shibuya, Tadaaki Kawakami, and Masakazu Wakayama

Subjects
Reaction mechanism, Chemistry, Stereochemistry, Radical, Organic Chemistry, Drug Discovery, Enediyne, Ionic bonding, Biochemistry, Combinatorial chemistry
Abstract

Stable α-alkynylacetic acid derivatives related to cis-enediyne were synthesized and the rate of decarboxylative cycloaromatization of 3,5-difluoro derivative 7c was found to be much faster than that of the corresponding phenyl derivative 7a. The cycloaromatization reaction mechanisms of 7c under various conditions were investigated.

Published
2000

3. ChemInform Abstract: Synthesis of Enediyne Model Compounds Producing Toluene Diradicals Possessing a Highly Radical Character via Enyne-Allene Intermediates

Author

Masayuki Shibuya, Ichiro Suzuki, Hisao Nemoto, Akira Shigenaga, and Masakazu Wakayama

Subjects
chemistry.chemical_compound, Character (mathematics), chemistry, Enyne, Allene, Enediyne, Organic chemistry, Molecule, Ionic bonding, General Medicine, Benzene, Toluene, Combinatorial chemistry
Abstract

Development of enediyne model compounds that produce dehydrotoluene diradicals under acidic media is described. The ionic character of the diradicals is shown to be avoided by the electron-withdrawing groups in the molecules both in benzene and MeOH.

Published
2001

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