The Ionisation Sequence of Hypoxanthine and 6‐Mercaptopurine | Zendy

Bergmann F. | Zendy; Kleiner M. | Zendy; Neiman Z. | Zendy; Rashi M. | Zendy

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The Ionisation Sequence of Hypoxanthine and 6‐Mercaptopurine

Author(s) -

Bergmann F.,

Kleiner M.,

Neiman Z.,

Rashi M.

Publication year - 1964

Publication title -

israel journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.908

H-Index - 54

eISSN - 1869-5868

pISSN - 0021-2148

DOI - 10.1002/ijch.196400056

Subject(s) - chemistry , hypoxanthine , bathochromic shift , hypsochromic shift , mercaptopurine , dissociation (chemistry) , purine metabolism , purine , sequence (biology) , stereochemistry , organic chemistry , biochemistry , medicine , physics , quantum mechanics , fluorescence , enzyme

The sequence of acid dissociation in hypoxanthine is 9 (7) → 1 and in 6‐mercaptopurine 1 → 9 (7). In the former compound, formation of either the mono‐ or the bis‐anion is accompanied by bathochromic shifts, in the latter by hypsochromic displacements. Analogous changes are observed upon conversion of these two purines into the respective O‐ and S‐methyl ethers.

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