Synthesis and polybromination of azulene [6, 5-d] thiazsole and it's 2-methyl derivatives

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Title:	Synthesis and polybromination of azulene [6, 5-d] thiazsole and it's 2-methyl derivatives
Other Titles:	薁基[6, 5-d]塞及其2-甲基衍生物之合成與聚溴化反應
Authors:	Huang, Tian-chyuan;林雲山;Lin, Yun-shan;Nozoe, Tetsuo
Contributors:	淡江大學化學學系
Date:	1996
Issue Date:	2009-12-01
Publisher:	Elsevier
Abstract:	Azuleno[6,5-d]thiazole (5a) and its 2-methyl derivative (8) were obtained by the deethoxycarbonylation of the corresponding diethyl azuleno[6,5-d]thiazole-5,7-dicarboxylate (4a) and 2-methyl derivative (6b) which were synthesized from diethyl 2-acetylamino-6-aminoazulene-1,3-dicarboxylate (1) in a few steps. Polybromination of 5a and 8 in 10% aqueous THF led to the corresponding 5-bromo-7,9-azulenequinono[6,5-d]thiazole (9a) and 2-methyl derivative (9b), respectively.
Relation:	Heterocycles 43(5), pp.1049-1056
DOI:	10.3987/COM-96-7429
Appears in Collections:	[Graduate Institute & Department of Chemistry] Journal Article

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