168271-92-9

• 常用中文名：4-氧代-4,5,6,7-四氢苯并呋喃-3-羧酸乙酯
• 常用英文名：ethyl 4-oxo-6,7-dihydro-5H-1-benzofuran-3-carboxylate
• CAS号：168271-92-9
• 分子式：C₁₁H₁₂O₄
• 分子量：208.21100
• 发布时间：2018-12-26 16:44:52
• 更新时间：2024-01-10 16:50:25

名称

• 中文名: 4-氧代-4,5,6,7-四氢苯并呋喃-3-羧酸乙酯
• 英文名: ethyl 4-oxo-6,7-dihydro-5H-1-benzofuran-3-carboxylate
• 英文别名: 4-oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylic acid ethyl ester; 3-Benzofurancarboxylic acid,4,5,6,7-tetrahydro-4-oxo-,ethyl ester; Ethyl 4-oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylate; ethyl 4-oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylic acid

物化性质

• 分子式: C₁₁H₁₂O₄
• 分子量: 208.21100
• 精确质量: 208.07400
• PSA: 56.51000
• LogP: 1.97530

安全

• 海关编码: 2932999099

合成路线

56671-28-4 75-03-6 ~% 168271-92-9

文献：Neurogen Corporation Patent: US2005/14939 A1, 2005 ; Location in patent: Page 23 ; US 20050014939 A1

56671-28-4 75-36-5 ~% 168271-92-9

文献：Neurogen Corporation Patent: US5750702 A1, 1998 ; US 5750702 A

128428-59-1 ~84% 168271-92-9

文献：Ranu, Brindaban C.; Adak, Laksmikanta; Banerjee, Subhash Tetrahedron Letters, 2008 , vol. 49, # 31 p. 4613 - 4617

86396-02-3 623-47-2 ~10% 168271-92-9 909390-10-9

文献：Lee, Yong; Yoon, Sang Synthetic Communications, 2006 , vol. 36, # 14 p. 1941 - 1951

海关

海关编码	2932999099
中文概述	2932999099. 其他仅含氧杂原子的杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0%
申报要素	品名, 成分含量, 用途
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%