…It is synthesized by the Fischer method, in which phenylhydrazones of aldehydes, ketones, or ketone acids are ring-closed using zinc chloride, copper(II) chloride, etc. as condensation agents. Many derivatives exist in nature, and representative examples include tryptophan (an essential amino acid), 3-indolylacetic acid (also known as heteroauxin, a plant growth hormone), indigo (a dye), and strychnine and reserpine (tranquilizers), which are important pharmaceuticals. In addition to being used as a raw material for these, it is also used to mix essential oils for fragrances. … *Some of the terminology explanations that mention "indolyl acetic acid" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…アルデヒド,ケトン,またはケトン酸のフェニルヒドラゾンを塩化亜鉛,塩化銅(II)などを縮合剤として閉環させるフィッシャー法で合成する。誘導体は天然に多く存在し,代表的なものとしてはトリプトファン(必須アミノ酸),3‐インドリル酢酸(ヘテロオーキシンともいい,植物生長ホルモンの一つ),インジゴ(染料)などがあり,医薬品として重要なストリキニーネ,レセルピン(トランキライザー)にも含まれる。これらの合成原料とされるほか,香料用の精油の調合にも用いられる。… ※「インドリル酢酸」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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