Synthesis and Diazotization of Diethyl 6-Amino-2- hydroxyazulene-1,3-dicarboxylate and Its 2-Acetoxyl Derivative

淡江大學機構典藏 > 理學院 > 化學學系暨研究所 > 期刊論文 > Item 987654321/4423

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/4423

题名:	Synthesis and Diazotization of Diethyl 6-Amino-2- hydroxyazulene-1,3-dicarboxylate and Its 2-Acetoxyl Derivative
作者:	Hunag, Tian-chyuan;Morita, Tadayoshi;Lin, Bing-bing;Lin, Yun-shan
贡献者:	淡江大學化學學系
关键词:	6-Azideazulene;Diazotization;Synthesis;Azulenyl Diazonium Salt;疊氮薁;重氮化;合成;薁基重氮離子鹽
日期:	1994
上传时间:	2013-07-29 13:38:56 (UTC+8)
出版者:	臺北市：中國化學學會
摘要:	Diethyl 6-amino-2-hydroxyazulene-1,3-dicarboxylate(6a) and 2-acetoxyl derivative (6b) were synthesized by reduction of the 6-azido derivatives (5a,b) with zinc/acetic acid in excellent yields. (5a) and (5b) were prepared by azidation of diethyl 2- acetoxy-6-bromoazulene- 1,3-dicarboxylate. Diazotization of (6a) with sodium nitrite in the presence of concentrated sulfuric acid in dioxane gave diethyl 2-hydroxy-, 2,6-dihydroxy-, and 2- hydroxy-6- [ 2-(2-hydroxyethoxy)ethoxy ] -azulene-1,3- dicarboxylates in 5, 35 and 20% yields, respectively. Similar reaction of (6b) gave the corresponding acetates, compounds of the same type from (6a). No evidence for the formation of 6-diazo-1,3-diethoxycarbonyl-2(6H) azulenone was obtained in the employed reaction conditions.
關聯:	Journal of the Chinese Chemical Society=中國化學會會誌 41(2), pp.199-203
DOI:	10.1002/jccs.199400029
显示于类别:	[化學學系暨研究所] 期刊論文

文件中的档案:

档案	大小	格式	浏览次数
0009-4536_41(2)p199-203.pdf	148Kb	Adobe PDF	187	检视/开启

在機構典藏中所有的数据项都受到原著作权保护.

TAIR相关文章