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Versuche zur Synthese von ‘Push‐Pull’‐Diacetylenen
Author(s) -
Stämpfli Urs,
Neuenschwander Markus
Publication year - 1983
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.19830660511
Subject(s) - chemistry , halogenation , push pull , sequence (biology) , stereochemistry , molecule , combinatorial chemistry , organic chemistry , biochemistry , electrical engineering , engineering
Attempted Synthesis of Push‐Pull Diacetylenes Two alternative synthesis of push‐pull diacetylenes of type 1 (5‐amino‐2,4‐alkadiynals) are investigated. A bromination‐dehydrobromination sequence starting with 5‐dimethylamino‐2,4‐pentadienal ( 2 ) as well as the application of the well‐known Cadiot ‐ Chodkiewicz coupling reaction give new intermediates 3–5 , and 7 and 8 , respectively, but fail to give the target molecules 1 .
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