PHENOLOXIDASE CATALYZED COUPLING OF CATECHOLS - IDENTIFICATION OF NOVEL COUPLING PRODUCTS

被引：31

作者：

ANDERSEN, SO ^{[1
]}

JACOBSEN, JP ^{[1
]}

BOJESEN, G ^{[1
]}

ROEPSTORFF, P ^{[1
]}

机构：

[1] ODENSE UNIV,DEPT CHEM,DK-5230 ODENSE,DENMARK

来源：

BIOCHIMICA ET BIOPHYSICA ACTA | 1992年 / 1118卷 / 02期

关键词：

4-METHYLCATECHOL; N-ACETYLDOPAMINE; TYROSINASE; SCLEROTIZATION; (INSECT CUTICLE); (BLOWFLY LARVAE);

D O I：

10.1016/0167-4838(92)90140-9

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Phenoloxidases from insect cuticle as well as from other sources oxidize catechols resulting in the formation of various coupling products. The two dominating products from 4-methylcatechol and the main product from N-acetyldopamine were purified and identified by means of plasma desorption and electron impact mass spectrometry and by H-1- and C-13-NMR spectroscopy. The main product from both catechols has a quinoid trihydroxybiphenyl structure, indicating oxidative coupling between a catechol and the corresponding trihydroxy derivative. The second product from 4-methylcatechol is a biphenyltetrol derivative, indicating oxidative coupling between two catechols.

引用

页码：134 / 138

页数：5

共 23 条

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