(E)-o-stilbenecarboxylic acid and its p-methyl, chloro and methoxy derivatives

Hiroshi Hamazaki, Shigeru Ohba, Fumio Toda, Hideaki Takumi

研究成果: Article査読

7 被引用数 (Scopus)

抄録

The crystal structures of the title compounds, (E)-stilbene-1-carboxylic acid, C15H12O2, (Ia), (E)-4′-methylstilbene-1-carboxylic acid, C16H14O2, (Ib), (E)-4′-chlorostilbene-1-carboxylic acid, C15H11ClO2, (Ic) and (Ic′), and (E)-4′-methoxystilbene-1-carboxylic acid, C16H14O3, (Id), have been determined. The chloro derivative shows polymorphism, with prisms, (Ic), being obtained from ether/hexane solution and needle crystals, (Ic′), being obtained from ethanol solution. The latter is isostructural with (Id). The selectivities of the products to the addition reaction of bromine are different, however, suggesting that the bromonium ion intermediate is stabilized by a resonance contribution of the p-MeO group.

本文言語English
ページ(範囲)620-624
ページ数5
ジャーナルActa Crystallographica Section C: Crystal Structure Communications
53
5
DOI
出版ステータスPublished - 1997 5 15

ASJC Scopus subject areas

  • 生化学、遺伝学、分子生物学(全般)

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