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异脱氢乙酸乙酯

异脱氢乙酸乙酯名称

[ CAS 号 ]:
3385-34-0

[ 中文名 ]:
4,6-二甲基-2-氧-2H-吡喃-5-甲酸乙酯

[ 英文名 ]:
5-Carbethoxy-4,6-dimethyl-2-pyrone

[中文别名 ]:

异脱氢乙酸乙酯

[英文别名 ]:

Ethyl isodehydroacetate
Ethylisodehydroacetate
Ethyl 4,6-dimethyl-2-oxo-2H-pyran-5-carboxylate
5-Carbethoxy-4,6-dimethyl-2-pyrone
(2,3-Dimethylphenoxy)acetic acid
EINECS 222-195-3
ethyl 2,4-dimethyl-6-oxo-pyran-3-carboxylate
ethyl 4,6-dimethyl-2-oxopyran-5-carboxylate
MFCD00006643
Ethyl isodehydracetate

异脱氢乙酸乙酯物理化学性质

[ 密度 ]:
1.167 g/mL at 25 °C(lit.)

[ 沸点 ]:
290-295 °C(lit.)

[ 熔点 ]:
17-18 °C(lit.)

[ 分子式 ]:
C₁₀H₁₂O₄

[ 分子量 ]:
196.20000

[ 闪点 ]:
>230 °F

[ 精确质量 ]:
196.07400

[ PSA ]:
56.51000

[ LogP ]:
1.43330

[ 外观性状 ]:
无色或淡黄色液体

[ 折射率 ]:
n20/D 1.515(lit.)

[ 储存条件 ]:
室温，干燥，密封

[ 水溶解性 ]:
Insoluble

异脱氢乙酸乙酯MSDS

异脱氢乙酸乙酯安全信息

[ 个人防护装备 ]:
Eyeshields;Gloves

[ 危害码 (欧洲) ]:
Xi

[ 安全声明 (欧洲) ]:
S24/25

[ 危险品运输编码 ]:
NONH for all modes of transport

[ WGK德国 ]:
3

[ 海关编码 ]:
2932209090

异脱氢乙酸乙酯合成路线

异脱氢乙酸乙酯上下游产品

异脱氢乙酸乙酯上游产品

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异脱氢乙酸乙酯海关

[ 海关编码 ]: 2932209090

[ 中文概述 ]:
2932209090. 其他内酯. 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 ]:
2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

异脱氢乙酸乙酯文献

A convenient preparation of the side-chain lactone ring of a withanolide precursor.

Steroids 54(3) , 313-20, (1989)

Condensation of C22 and C21 steroidal aldehydes with ethyl 4,6-dimethyl-2-oxo-2H-pyran-5-carboxylate 1 in alkaline medium, followed by decarboxylation, provides a simple route to the alpha, beta-unsat...

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