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1,4-二氟-2,5-二甲氧基苯

1,4-二氟-2,5-二甲氧基苯名称

[ CAS 号 ]:
199866-90-5

[ 中文名 ]:
1,4-二氟-2,5-二甲氧基苯

[ 英文名 ]:
1,4-difluoro-2,5-dimethoxybenzene

[英文别名 ]:

2,5-difluoro-1,4-dimethoxybenzene
1,4-Difluoro-2,5-dimethoxybenzene
MFCD00142553

1,4-二氟-2,5-二甲氧基苯物理化学性质

[ 密度 ]:
1.193g/cm3

[ 沸点 ]:
193.7ºC at 760 mmHg

[ 熔点 ]:
123-125 °C(lit.)

[ 分子式 ]:
C₈H₈F₂O₂

[ 分子量 ]:
174.14500

[ 精确质量 ]:
174.04900

[ PSA ]:
18.46000

[ LogP ]:
1.98200

[ 蒸汽压 ]:
0.64mmHg at 25°C

[ 折射率 ]:
1.455

[ 储存条件 ]:
室温，干燥，密封

1,4-二氟-2,5-二甲氧基苯MSDS

详细MSDS(安全技术说明书)

1,4-二氟-2,5-二甲氧基苯安全信息

[ 符号 ]:

GHS07

[ 信号词 ]:
Warning

[ 危害声明 ]:
H315-H319-H335

[ 警示性声明 ]:
P261-P305 + P351 + P338

[ 个人防护装备 ]:
dust mask type N95 (US);Eyeshields;Gloves

[ 危害码 (欧洲) ]:
Xi

[ 风险声明 (欧洲) ]:
R36/37/38

[ 安全声明 (欧洲) ]:
S26-S36

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

[ WGK德国 ]:
3

[ 海关编码 ]:
2909309090

1,4-二氟-2,5-二甲氧基苯海关

[ 海关编码 ]: 2909309090

[ 中文概述 ]:
2909309090 其他芳香醚及其卤化衍生物、磺化、硝化衍生物（包括亚硝化衍生物）。监管条件:无。增值税率:17.0%。退税率:9.0%。最惠国关税:5.5%。普通关税:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途

[ Summary ]:
2909309090 other aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

1,4-二氟-2,5-二甲氧基苯文献

Long-lived radical cation salts obtained by interaction of monocyclic arenes with niobium and tantalum pentahalides at room temperature: EPR and DFT studies.

Chemistry 19(41) , 13962-9, (2013)

The 1:3 reactions of the alkoxy arenes 1,4-(MeO)2 C6 H4 and 1,4-F2 -2,5-(MeO)2 C6 H2 with TaF5 in chloroform at 40-50 °C resulted in formation in about 35 % yield of the long-lived radical cation salt...

Iterative benzyne-furan cycloaddition reactions: studies toward the total synthesis of ent-Sch 47554 and ent-Sch 47555.

Org. Lett. 8(13) , 2859-61, (2006)

[reaction: see text] 7-Fluoro-5,8-dimethoxy-1-naphthol, prepared from the lithiation and benzyne formation from 1,4-difluoro-2,5-dimethoxybenzene and Diels-Alder cycloaddition with furan, was sequenti...

1,4-Difluoro-2,5-dimethoxybenzene as a precursor for iterative double benzyne-furan Diels-Alder reactions.

J. Org. Chem. 70(9) , 3525-9, (2005)

[reaction: see text] The use of 1,4-difluoro-2,5-dimethoxybenzene as a novel precursor for iterative two-directional benzyne-furan Diels-Alder reactions, using a range of 2- and 3-substituted furans, ...

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