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The synthesis of pyrimido[4,5‐ d ] pyridazines
Author(s) -
Kinoshita Toshio,
Castle Raymond N.
Publication year - 1968
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570050617
Subject(s) - pyridazine , chemistry , stereochemistry , medicinal chemistry
The synthesis of pyrimido[4,5‐ d ]pyridazin‐2‐one‐4‐thione (II), pyrimido[4,5‐ d ]pyridazine‐2,4‐dithione (VI), 4‐aminopyrimido[4,5‐ d ]pyridazine‐2‐thione (III), 2‐aminopyrimido[4,5‐ d ]‐pyridazin‐4‐one (X), 2‐methylpyrimido[4,5‐ d ]pyridazin‐4‐one (XII), and pyrimido[4,5‐ d ]‐pyridazin‐4‐one (XIII) are reported together with several new pyridazine intermediates.