Premium
Über Protonenresonanz‐Spektren von Pteridinen III. Zur Struktur von 9‐Acetonylxanthopterin und Erythropterin
Author(s) -
von Philipsborn W.,
Stierlin H.,
Traber W.
Publication year - 1963
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.19630460716
Subject(s) - chemistry , tautomer , proton magnetic resonance , stereochemistry , crystallography , nuclear magnetic resonance , physics
Proton magnetic resonance spectra of 9‐acetonylxanthopterine (I) and erythropterine (II) are reported. Based upon these data and UV.‐spectroscopic evidence, it is shown that these compounds exist in the tautomeric forms Ib and IIb, respectively.