Epi-isomerism - epiisomerism

Japanese: エピ異性 - エピいせい
Epi-isomerism - epiisomerism
A type of stereoisomerism. In compounds with two or more asymmetric carbon atoms, isomers that differ only in the configuration of one asymmetric carbon atom are called epimers. For example, D(+)-glucose and D(+)-galactose are epimers that differ only in the configuration of C4 (Figure 1). Epiisomerism is a type of diastereoisomerism. It was discovered by E. Fischer in 1890 while studying the chemistry of sugars. The interconversion between epimers is called epimerization.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
立体異性の一種。不斉炭素原子を2個以上もつ化合物において,1個の不斉炭素原子の立体配置だけが異なる異性体をたがいにエピマーepimer(エピ異性体)であるという。たとえば,D(+)‐グルコースとD(+)‐ガラクトースはC4の立体配置のみが異なるエピマーである(図1)。エピ異性はジアステレオ異性の一種である。1890年E.フィッシャーが糖類の化学を研究中に発見した。エピマー間の相互変換をエピ化という。

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

<<:  ABS resin - ABS copolymer

>>:  Evian-les-Bains (English spelling)

Recommend

Tea boy - Chabouzu

A job title for samurai in the Muromachi, Azuchi-...

Alimenta

…Senatorial decisions were still important as a f...

Treaty of Waitangi

A treaty signed in 1840 between the British govern...

preliminary examination

...Disclosure of the reasons for detention is a p...

Rice leafminer - rice leafminer

This insect belongs to the family Agromyzidae, su...

Chasuble (English spelling) [France]

The vestments worn by Catholic priests over their ...

Pistoia (English spelling)

The capital of the province of Pistoia in Tuscany,...

Hira Mountains

A mountain range stretching from the west shore o...

New middle class - shinchukanso (English spelling) new middle strata

The middle class is a new class that emerged in an...

Glastonbury

A town in the Mendip region of the northeastern So...

Cosmic dust

(1) Fine particles of matter scattered throughout ...

Ozato Castle

...The Ozato Plateau, made of new limestone and r...

Litvinov

Soviet politician. He participated in the revoluti...

FIS - Fiss

(France) Fédération Internationale de Ski (Interna...

Marktfahren

…Until the end of the 12th century, 90% of charte...