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Your search keyword '"Aoki, Katsuyuki"' showing total 2 results
Start Over Author "Aoki, Katsuyuki" Publisher american chemical society
2 results on '"Aoki, Katsuyuki"'

1. A mild and highly chemoselective alpha-iodination of N-allylic carboxamides and lactams

Author

Kitagawa, Osamu, Kikuchi, Norihiko, Hanano, Tokushi, Aoki, Katsuyuki, Yamazaki, Tomomi, Okada, Midori, and Taguchi, Takeo

Subjects
Amides -- Research, Halogenation -- Research, Biological sciences, Chemistry
Abstract

N-allylic carboxamides and lactams undergo mild and highly chemoselective alpha-iodination reactions to produce adequate yields of alpha-iodo amides and lactams. The synthesis involves reacting N-allylic amides and lactams with I2 and 2,6-lutidine at room temperature. The iodides formed in the reactions were converted to beta lactam or bicyclic lactam derivatives with high stereoselectivity by a nucleophilic substitution or a radical iodine atom-transfer reaction.

Published
1995

2. Interligand interactions affecting site-specific metal bonding. X-ray crystal structures of (Rh(2)(acetato)(4)(L)(2)), where L = 2, 4-diamino-6-methyl-s-triazine, 2,6-dimethyl-4-aminopyrimidine, and 2, 6-dimethylpyridine

Author

Aoki, Katsuyuki, Inaba, Masamoto, Teratani, Shousuke, Yamazaki, Hiroshi, and Miyashita, Yoshikatsu

Subjects
Ligands -- Research, Rhodium -- Research, Metal bonding -- Analysis, Chemistry
Abstract

Reaction between (Rh(2)(OAc)(4)) and various ligands yields (Rh(2)(OAc(4) (L)(2))). The ligands are slightly different in nature and have different substituents adjacent to the donor nitrogen. These reactions are performed to analyze the influence of intraligand interactions on site-specific metal bonding. Hydrogen bonding of the exocyclic substituents is vital in determining the metal bonding.

Published
1994

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