萘

• 产品号: A13188
• CAS号: 91-20-3
• 分子式: C10H8
• 分子量: 128.17052
• 纯 度: 99+%

产品别名

• 标题: Naphthalene
• IUPAC标准名: naphthalene
• IUPAC传统名: naphthalene

产品登记号

• Beilstein号: 1421310
• 默克索引号: 146370
• EC号: 202-049-5
• CAS号: 91-20-3
• MDL号: MFCD00001742

产品性质

• 联合国危险货物包装类别(PG): III
• GHS危险声明: H228-H351-H400-H410-H302
• 欧盟危险性物质标志: X
• 欧盟危险性物质标志: 易燃性(Flammable) (F)
• 欧盟危险性物质标志: 环境危害性(Nature polluting) (N)
• GHS警示性声明: P210-P241-P280-P301+P312-P405-P501A
• 危险公开号: 11-22-40-50/53
• RTECS编号: QJ0525000
• 安全公开号: 36/37-46-60-61
• TSCA收录: 是
• 联合国危险货物等级: 4.1
• 联合国危险货物编号: UN1334
• 纯度: 99+%
• 沸点: 218°C
• 密度: 0.963
• 闪点: 78°C(172°F)
• 熔点: 80-82°C
• 折射率: 1.5821

参考文献

• Reacts with Na metal in 1,2-dimethoxyethane to give Na naphthalenide. This radical anion is a powerful-electron donor, e.g. in reductive dehalogenation of vic-dihalides: J. Chem. Soc., Chem. Commun., 78 (1969), and in reductive cleavage of tosylates to alcohols: J. Am. Chem. Soc., 88, 1581 (1966).
• Li naphthalenide is a useful, non-nucleophilic reagent for the conversion of carboxylic acids to their dianions in cases where LDA could interfere: J. Org. Chem., 45, 1106 (1980). Similarly, has been found preferable to LDA in the lithiation of allylic nitriles: Synthesis, 358 (1981).
• Carboxylic acids react with alkyl, alkenyl or aryl chlorides in the presence of Li metal and a catalytic amount of naphthalene in THF to give ketones in fair to good yields: J. Org. Chem., 61, 6058 (1996).