Preparation of New Nitrogen-Bridged Heterocycles. 68. One-Pot Synthesis of 4-Substituted 5-Acylthieno[3,2-d]thiazole Derivatives
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概要
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The reactions of 5-acyl-3-(1-pyridinio)thiophene-2-thiolates with dimethyl acetylenedicarboxylate in xylene at the reflux temperature afforded the corresponding 2-unsubstituted 5-acylthieno[3,2-d]thiazoles in 25―69% yields together with dimethyl phthalate as another fragmentation product. In a few reactions, the unexpected products, dimethyl 2-[2-acylthieno[2’,3’:2,3]-1,4-thiazino[4,5-a]pyrrol-8-ylidene]succinate derivatives, were also isolated, though their yields were very low.
- PERGAMON-ELSEVIER SCIENCE LTDの論文
- 2010-01-01
著者
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Suga Hiroyuki
Department Of Cardiovascular Dynamics National Cardiovascular Center Research Institute
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Suga H
Department Of Physiology Ii Okayama University Medical School
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Kakehi A
Department Of Chemistry And Material Engineering Faculty Of Engineering Shinshu University
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Suga Hiroyuki
Department Of Systems Physiology Okayama University Graduate School Of Medicine Dentistry And Pharma
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Akikazu Kakehi
Department Of Chemistry And Material Engineering Faculty Of Engineering Shinshu University
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Suga H
Department Of Systems Physiology Okayama University Graduate School Of Medicine Dentistry And Pharma
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Suga Hiroyuki
Department Of Chemistry And Material Engineering Faculty Of Engineering Shinshu University
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Kakehi A
Dep. Of Chemistry And Material Engineering Fac. Of Engineering Shinshu Univ. Wakasato Nagano 380-855
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Suga Hiroyuki
Dep. Of Chemistry And Material Engineering Fac. Of Engineering Shinshu Univ. Wakasato Nagano 380-855
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Suga Hiroyuki
Dep. Of Chemistry And Material Engineering Fac. Of Engineering Shinshu Univ. Wakasato Nagano 380-855
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