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Katsumi Tokumaru

University of Tokyo

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Publication

Featured researches published by Katsumi Tokumaru.

Journal of The Chemical Society D: Chemical Communications | 1970

Benzimidoyl radicals: free-radical reactions of benzaldimines

Hiroyuki Ohta; Katsumi Tokumaru

Benzaldimines, ArCH = NR (R = But or PhCO2), on treatment with di-isopropyl peroxydicarbonate in warm benzene, generates benzimidoyl radicals, ArĊ= NR, which subsequently decompose to give benzonitrile together with the radical R.

Tetrahedron Letters | 1974

Novel substituent effects in 1H and 13C NMR spectra of 4-and 4'-substituted N-benzylideneanilines

Naoki Inamoto; K. Kushida; Shozo Masuda; Hiroyuki Ohta; S. Satoh; Youko Tamura; Katsumi Tokumaru; Kazuo Tori; Masao Yoshida

Journal of Synthetic Organic Chemistry Japan | 1972

Photochemistry of Carbon-Nitrogen Double Bonds

Hiroyuki Ohta; Katsumi Tokumaru

Tetrahedron Letters | 1967

Photochemical decomposition of benzoyl peroxide in aromatic solvents and aromatic benzoyloxylation induced by oxygen

Toshio Nakata; Katsumi Tokumaru; Osamu Simamura

Tetrahedron Letters | 1964

Diarylnitroxides: Their formation from diarylamines by oxidation with peroxybenzoic acid and decomposition on alumina

Katsumi Tokumaru; Hirochika Sakuragi; Osamu Simamura

Tetrahedron Letters | 1978

Structure-reactivity relationships in triplet sensitized photolysis of aromatic ketone O-acyloximes

Hirochika Sakuragi; Masayuki Yoshida; Hideko Kinoshita; Kimie Utena; Katsumi Tokumaru; Masamatsu Hoshino

Tetrahedron Letters | 1966

Styryl radicals derived from the thermal decomposition of trans- and cis-cinnamoyl peroxide

Osamu Simamura; Katsumi Tokumaru; Hiroshi Yui

Tetrahedron Letters | 1976

Substituent effects on C-13 chemical shifts of substituted benzenes. A new proposition of electronegativity correlation of meta-carbon chemical shifts

Naoki Inamoto; Shozo Masuda; Katsumi Tokumaru; Kazuo Tori; Masayuki Yoshida; Yohko Yoshimura

Tetrahedron Letters | 1976

Substituent effects on C-13 chemical shifts of substituted benzenes. Periodical dependency of substituent electronegativity effects upon ring-carbon chemical shifts

Naoki Inamoto; Shozo Masuda; Katsumi Tokumaru; Kazuo Tori; Masayuki Yoshida; Yohko Yoshimura

Tetrahedron Letters | 1974

On the unreactive nature of the excited imines in hydrogen atom abstraction

Hiroyuki Ohta; Katsumi Tokumaru

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Masayuki Yoshida

University of Tokyo

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Kazuo Tori

University of Tokyo

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Naoki Inamoto

University of Tokyo

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Shozo Masuda

University of Tokyo

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Hirochika Sakuragi

University of Tsukuba

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Hiroyuki Ohta

University of Tokyo

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Osamu Simamura

University of Tokyo

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Tadashi Suehiro

Gakushuin University

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Yohko Yoshimura

University of Tokyo

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Akira Sugimori

Sophia University

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