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Synthesis of Novel Heteroaromatic Polyfused as ‐Triazines by Ring Transformation [1]
Author(s) -
Riedl Zsuzsanna,
Hajòs György,
Messmer András,
Kollenz Gert
Publication year - 1994
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19941270932
Subject(s) - chemistry , malononitrile , ring (chemistry) , dimedone , acetylacetone , triazine , sodium methoxide , sodium salt , salt (chemistry) , medicinal chemistry , nucleophile , reagent , stereochemistry , organic chemistry , inorganic chemistry , catalysis
Ring transformation of the tricyclic furo‐fused as ‐triazinium salt 1 in the presence of nucleophilic reagents (e.g. sodium hydrogensulfide, sodium salts of malonic ester, ethyl cyanoacetate, acetylacetone, dimedone, or malononitrile) leads to the two new heteroaromatic ring systems thieno[2,3‐e]pyrido[1,2‐ b ]‐ as ‐triazinium salt ( 5 ) and differently substituted cyclopenta[e]pyrido[1,2‐ b ]‐ as ‐triazine compounds ( 8, 9, 10, 11 , and 13 ).
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