2024-03-29T10:56:39Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00012511
2022-12-14T04:30:14Z
1221:1222
Preparation of New Nitrogen-Bridged Heterocycles. 68. One-Pot Synthesis of 4-Substituted 5-Acylthieno[3,2-d]thiazole Derivatives
Kakehi, Akikazu
Suga, Hiroyuki
Okumura, Yukihisa
Nishi, Takashi
Copyright© 2010 The Japan Institute of Heterocyclic Chemistry
Thieno[3,2-d]thiazole
Synthesis
3-(1-Pyridinio)thiophene-2-thiolate
Dimethyl Acetylenedicarboxylate
X-Ray Analysis
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.
Article
HETEROCYCLES. 81(1):175-184 (2010)
The Japan Institute of Heterocyclic Chemistry
2010-01-01
eng
journal article
AM
http://hdl.handle.net/10091/10739
https://soar-ir.repo.nii.ac.jp/records/12511
http://www.heterocycles.jp/
http://www.heterocycles.jp/
https://doi.org/10.3987/COM-09-11852
10.3987/COM-09-11852
0385-5414
AA00663739
HETEROCYCLES
81
1
175
184
https://soar-ir.repo.nii.ac.jp/record/12511/files/Preparation_New_Nitrogen-Bridged_Heterocycles.pdf
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2015-09-28