white crystalline powder Hygroscopic. Decomposes in
water to InCl3 and In. M.p. 235°C; decomposes below the m.p.,
apparently to InCl3 and InCl; b.p. ~570°C; d 3.65. Rhombic
crystals.
용도
Catalyzes the enantioselective ring-opening of meso-aziridines with thiols.1,2 A highly efficient catalyst in water for the preparation of furyl glycosides.3
생산 방법
According to Klemm, metallic In is oxidized in InCl3 in a stream of Cl2, which has been carefully dried with concentrated H2SO4 and P2O5. A thoroughly dried quartz apparatus whose components have been fused or connected by ground joints is used. Chlorination proceeds rather vigorously at first, with a pale glow, and it proceeds through the mono- and dichloride steps. These compounds are melts. The end product of the chlorination, InCl3, sublimes around 600°C as lustrous spangles which appear on the walls of the receiver. The Indium chloride (LnCl3) may be purified by subliming in a stream of N2 (or CO2) to which some Cl2 has been added. The sublimate can cool in a stream of inert, Cl2-free gas to remove excess chlorine.
일반 설명
Indium(III) chloride (InCl3) is an indium halide that is a Lewis acid in a variety of organic reactions.
위험도
See indium.
Purification Methods
The anhydrous salt forms yellow deliquescent crystals which can be sublimed at 600o in the presence of Cl2/N2 (1:1) [does not melt]. It is resublimed in the presence of Cl2/N2 (1:10) and finally heated to 150o to expel excess Cl2. It is soluble in H2O and should be stored in a tightly closed container. [Baxter & Alter J Am Chem Soc 55 1943 1933.]
