NIH Shift
(Sprache: Englisch)
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. An NIH shift is a chemical rearrangement where a hydrogen atom on an aromatic ring undergoes an intramolecular migration...
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. An NIH shift is a chemical rearrangement where a hydrogen atom on an aromatic ring undergoes an intramolecular migration primarily during a hydroxylation reaction. This process is also known as a 1,2-hydride shift. These shifts are often studied and observed by isotopic labeling. In this example, a hydrogen atom has been isotopically labeled using deuterium (shown in red). As the hydroxylase adds a hydroxyl (the -OH group), the labeled site shifts one position around the aromatic ring relative to the stationary methyl group (-CH3). Several hydroxylase enzymes are believed to incorporate an NIH shift in their mechanism, including 4-hydroxyphenylpyruvate dioxygenase and the tetrahydrobiopterin dependent hydroxylases. The name NIH shift arises from the U.S. National Institutes of Health from where studies first reported observing this transformation.
Bibliographische Angaben
- 2010, 60 Seiten, Maße: 22 cm, Kartoniert (TB), Englisch
- Herausgegeben von Surhone, Lambert M.; Tennoe, Mariam T.; Henssonow, Susan F.
- Verlag: Betascript Publishing
- ISBN-10: 6131927510
- ISBN-13: 9786131927515
Sprache:
Englisch
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