Synthesis of dimethyl heterocyclic-o-dic
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Yoshinori Tominaga; Kazuo Ueda
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Article
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2005
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Journal of Heterocyclic Chemistry
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English
β 508 KB
Dimethyl acetylenedicarboxylate (DMAD) is a very important and useful reagent for the preparation of dimethyl heterocyclic-o-dicarboxylates, which are key intermediates in the synthesis of fused pyridazine derivatives. The synthesis of thiopyranes by the Diels-Alder reaction of dithiocarboxylate der