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Synthese und Reaktionen von Droso‐ und Isodrosopterin. Pteridine, LIV
Author(s) -
Schlobach Heinrich,
Pfleiderer Wolfgang
Publication year - 1972
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19720550729
Subject(s) - chemistry , pigment , stereochemistry , organic chemistry
The synthesis of the Drosophila pigments droso‐ and isodrosopterin ( 7 ) from 7.8‐dihydropterin ( 3 ) and 2‐hydroxy‐3‐oxobutyric acid ( 4 ) is described. A reaction mechanism is discussed and proven by isotope experiments. Droso‐ and isodrosopterin form in weak acidic medium in the presence of NH 4 ⊕ions two red reaction products each one of which seems to be identical with neodrosopterin.