氯化铈(III)七水合物

• 产品号: A12947
• CAS号: 18618-55-8
• 分子式: CeCl3
• 分子量: 246.475
• 纯 度: 99%

产品别名

• 标题: Cerium(III) chloride heptahydrate
• IUPAC标准名: cerium(3+) ion trichloride
• IUPAC传统名: cerium(3+) ion trichloride
• 别名: Cerous chloride heptahydrate

产品登记号

• MDL号: MFCD00149634
• 默克索引号: 141997
• EC号: 232-227-8
• CAS号: 18618-55-8

产品性质

• 纯度: 99%
• GHS危险声明: H315-H319-H335
• 欧盟危险性物质标志: 刺激性(Irritant) (Xi)
• GHS警示性声明: P261-P305+P351+P338-P302+P352-P321-P405-P501A
• 危险公开号: 36/37/38
• RTECS编号: FK5100000
• 安全公开号: 26-37
• 保存注意事项: Air Sensitive & Hygroscopic
• TSCA收录: 是

参考文献

• Reagent for selective cleavage of MEM ethers (see 2-Methoxyethoxymethyl chloride, L01050) under mild conditions: Org. Lett., 3, 1149 (2001).
• Useful in modifying the reactivity of Sodium borohydride, 35788, allowing selective reduction of ketones in the presence of aldehydes: J. Am. Chem. Soc., 101, 5848 (1979), and giving increased selectivity for 1,2-reduction of enones to allylic alcohols: J. Chem. Soc., Chem. Commun., 601 (1978); cyclohexenones can be reduced in an alkyl alcohol to give the alkyl allylic ether in high yield: Pol. J. Chem., 69, 1655 (1995).
• With a catalytic amount of NaI in acetonitrile, dioxolanes (ethylene acetals) are deprotected to the parent carbonyl compounds: J. Org. Chem., 62, 4183 (1997), as are 4-methoxybenzyl ethers: J. Org. Chem., 64, 5696 (1999), and allyl ethers: Tetrahedron Lett., 40, 7293 (1999), to the parent alcohols. With a stoichiometric amount of NaI, alcohols can be converted to alkyl iodides: J. Org. Chem., 65, 2830 (2000), aryl alkyl ethers undergo dealkylation to phenols: Chem. Lett., 738 (2000), and selective deprotection of N-Boc protected tert-butyl amino acid esters can be achieved: J. Org. Chem., 66, 4430 (2001). Also deprotects the tert-butyl ethers of alcohols: Adv. Synth. Catal., 348, 905 (2006). For a review of the CeCl₃?nH₂O/NaI system,as an efficient, water-tolerant Lewis Acid promoter in organic synthesis, see: Synlett, 2101 (2003).
• In combination with Zn in acetonitrile, promotes the Reformatsky reaction of Ethyl bromofluoroacetate, B21579: J. Org. Chem., 67, 72 (2002).
• For preparation of the anhydrous reagent and its use in combination with organolithium or Grignard reagents to suppress side reactions with carbonyl compounds, see: Org. Synth., 76, 228 (1998).
• For a brief feature on uses of this reagent, see: Synlett, 1935 (2002).