Diastereoselective synthesis of fused [1,3]thiazolo[1,3]oxazins and [1,3]oxazino[2,3-b][1,3]benzothiazoles

An efficient diastereoselective synthesis of 7-ethyl 5,6-dialkyl 7H-[1,3]thiazolo[2,3-b][1,3]oxazin-5,6, 7-tricarboxylates and 2-ethyl 3,4-dialkyl 2H-[1,3]oxazino [2,3-b][1,3]benzothiazole-2,3,4-tricarboxylates via reaction of thiazole and benzothiazole with dialkyl acetylenedicarboxylates in the pr...

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Bibliographic Details
Published in:Molecular diversity 2009-11, Vol.13 (4), p.439-443
Main Authors: Yavari, Issa, Hossaini, Zinatossadat, Souri, Sanaz, Seyfi, Samereh
Format: Article
Language:English
Subjects:
Acetylenic compound
Benzothiazole
Benzothiazoles - chemical synthesis
Benzothiazoles - chemistry
Biochemistry
Biomedical and Life Sciences
Carboxylic Acids - chemistry
Chemical compounds
Chemical reactions
Chemical synthesis
Ethyl bromopyruvate
Ethyl pyruvate
Full Length Paper
Life Sciences
Molecular chemistry
Organic Chemistry
Oxazines - chemical synthesis
Oxazines - chemistry
Pharmacy
Polymer Sciences
Stereoisomerism
Substrate Specificity
Thiazole
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Summary:An efficient diastereoselective synthesis of 7-ethyl 5,6-dialkyl 7H-[1,3]thiazolo[2,3-b][1,3]oxazin-5,6, 7-tricarboxylates and 2-ethyl 3,4-dialkyl 2H-[1,3]oxazino [2,3-b][1,3]benzothiazole-2,3,4-tricarboxylates via reaction of thiazole and benzothiazole with dialkyl acetylenedicarboxylates in the presence of ethyl pyruvate is described.
ISSN:1381-1991
1573-501X
DOI:10.1007/s11030-009-9128-x