Reaction behavior of secondary alcohols in supercritical water

Pengyu Wang, Hiroyuki Kojima, Kazuya Kobiro, Koichi Nakahara, Toshihiko Arita, Okitsugu Kajimoto

研究成果: Article査読

13 被引用数 (Scopus)

抄録

Benzhydrol and benzoin, which have two benzene subunits, a secondary hydroxy group, and no hydrogen atom on the β-position of the hydroxy group, were treated in supercritical water in the absence of an oxidizing agent or a catalyst. Water played a key role in the product distributions in these reactions. Each reaction proceeded smoothly to give larger amounts of oxidation products, benzophenone (3) and benzil (6), as well as smaller amounts of reduction products, diphenylmethane (4) and benzyl phenyl ketone (7), respectively, in the presence of water, while the ratios of 3:4 and 6:7 were almost 1:1 in both cases in the absence of water. The best yield of benzophenone (63%) was achieved by the reaction of benzhydrol at 460°C for 180 min in 0.35 g mL-1 water density in the SUS 316 reactor. Hydrogen gas evolution was observed in the reaction of benzhydrol in a quartz tubular reactor.

本文言語English
ページ(範囲)1828-1832
ページ数5
ジャーナルBulletin of the Chemical Society of Japan
80
9
DOI
出版ステータスPublished - 2007
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)

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