Chromium, bis(1,3,5-trimethylbenzene)-

Base Information

• Chemical Name: Chromium, bis(1,3,5-trimethylbenzene)-
• CAS No.: 1274-07-3
• Molecular Formula: C18H24 Cr
• Molecular Weight: 292.385
• Mol file: 1274-07-3.mol

Synonyms:VNUURTHNRXVNCD-UHFFFAOYSA-N;Chromium, bis(1,3,5-trimethylbenzene);Chromium, bis(1,3,5-trimethylbenzene)-;Bis(eta6-1,3,5-trimethylbenzene)chromium;bis(.eta.6-1,3,5-Trimethylbenzene) chromium;1274-07-3

Chemical Property of Chromium, bis(1,3,5-trimethylbenzene)-

Chemical Property:

• Boiling Point: 166.7°Cat760mmHg
• Flash Point: 44.4°C
• Density: g/cm³
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 6
• Rotatable Bond Count: 0
• Exact Mass: 292.128305
• Heavy Atom Count: 19
• Complexity: 227

Purity/Quality:

98%min ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C[C-]1[CH-][C-]([CH-][C-]([CH-]1)C)C.CC1=CC(=CC(=C1)C)C.[Cr]

Technology Process of Chromium, bis(1,3,5-trimethylbenzene)-

There total 2 articles about Chromium, bis(1,3,5-trimethylbenzene)- which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 62.0%

chromium(III) chloride (10025-73-7,16284-59-6) + 1,3,5-trimethyl-benzene (108-67-8) → bis(η-mesitylene)chromium(0) (1274-07-3)

Guidance literature:

With Al; AlCl₃; In tetrahydrofuran; 1,2-dimethoxyethane; (under Ar, Schlenk); flask charged with Al, AlCl3, ligand added, stirredat room temp. for 1 h, CrCl3 added, heated at 120°C for 5 h, coo led, mixt. of THF-DME added, refluxed for 8 h, cooled to room temp.; ppt. filtered, washed with heptane, solvent removed in vacuo, ppt. extd.with heptane, filtered, heptane stripped off, solid sublimed at 105.deg ree.C/0.01 mmHg;

DOI:10.1039/b602783k

Reference yield:

bis(η6-mesitylene)(μ-η6:η6-mesitylene)dichromium → bis(η-mesitylene)chromium(0) (1274-07-3) + chromium (7440-47-3)

Guidance literature:

In neat (no solvent); byproducts: mesitylene; slow decompn. above 70 °C;

DOI:10.1021/ja00268a063

Reference yield: 93.0%

cobaltocenium bromide + bis(η-mesitylene)chromium(0) (1274-07-3) → cobaltocene (1277-43-6,78206-33-4) + Cr(η6-1,3,5-Me3C6H3)2Br (945910-54-3)

Guidance literature:

In tetrahydrofuran; (under Ar); soln. of Cr-complex in THF treated with Co-complex, stirred for 12 h at room temp.; ppt. filtered, washed with THF, dried in vacuo at room temp., vol. of mother liquor reduced, heptane added, filtered, dried in vacuo;

DOI:10.1016/j.jorganchem.2007.01.044

upstream raw materials:

chromium(III) chloride

1,3,5-trimethyl-benzene

Downstream raw materials:

bis(η-hexamethylbenzene)chromium(0)

Hexamethylbenzene

{(1.3.5-(CH₃)3C₆H₃)2Cr}B(C₆H₅)

bis(benzene)chromium⁽⁰⁾

Refernces

• 1、 Lamanna,W.M.. "". . p. 2096. Retrieved 1986.