Tetramethylammonium (1-hydroxyethylidene)pentacarbonylchromium

Base Information

• Chemical Name: Tetramethylammonium (1-hydroxyethylidene)pentacarbonylchromium
• CAS No.: 15975-93-6
• Molecular Formula: C11H15CrNO6
• Molecular Weight: 309.239
• European Community (EC) Number: 635-323-1
• DSSTox Substance ID: DTXSID50453603
• Mol file: 15975-93-6.mol

Synonyms:15975-93-6;Tetramethylammonium (1-hydroxyethylidene)pentacarbonylchromium;carbon monoxide;1-oxidoethylidenechromium;tetramethylazanium;AGN-PC-0NF5EI;DTXSID50453603;XXLBAPDYJMKDNK-UHFFFAOYSA-N

Chemical Property of Tetramethylammonium (1-hydroxyethylidene)pentacarbonylchromium

Chemical Property:

• Melting Point: 186 °C (dec.)(lit.)
• PSA: 17.07000
• LogP: -0.54780
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 6
• Rotatable Bond Count: 0
• Exact Mass: 309.030442
• Heavy Atom Count: 19
• Complexity: 62.1

Purity/Quality:

97% ^*data from raw suppliers

Tetramethylammonium (1-hydroxyethylidene)pentacarbonylchromium ^*data from reagent suppliers

Safty Information:

• Hazard Codes: Xn
• Statements: 20/21/22
• Safety Statements: 36

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC(=[Cr])[O-].C[N+](C)(C)C.[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+].[C-]#[O+]

Technology Process of Tetramethylammonium (1-hydroxyethylidene)pentacarbonylchromium

There total 2 articles about Tetramethylammonium (1-hydroxyethylidene)pentacarbonylchromium 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: 72.0%

lithium (Me(O(1-))C)pentacarbonylchromium + tetramethylammonium bromide (64-20-0) → pentacarbonyl((methyl)((tetramethylammonio)oxy)carbene)chromium(0) (15975-93-6)

Guidance literature:

In water; addn. of Me4NBr to aq. slurry of Cr salt;; recrystn. from CH2Cl2 with ether;;

Reference yield:

chromium(0) hexacarbonyl (199620-14-9,13007-92-6) → pentacarbonyl((methyl)((tetramethylammonio)oxy)carbene)chromium(0) (15975-93-6)

Guidance literature:

Multi-step reaction with 2 steps

1: diethyl ether

2: water

In diethyl ether; water;

Reference yield: 86.0%

pentacarbonyl((methyl)((tetramethylammonio)oxy)carbene)chromium(0) (15975-93-6) + Triphenylmethylamin (5824-40-8) → pentacarbonyl{(N-tritylamino)(methyl)carbene}chromium(0) (124685-71-8)

Guidance literature:

With Acetyl bromide; In dichloromethane; chromium complex soln. is deoxygenated and kept under Ar, CH3COBr is added at -40°C and stirred for 1 h, tritylamine soln. is added dropwise, stirring for 20 h (temp. is raised from -40 to -5°C); nneutral alumina is added, filtn. through Celite, chromy. (silica gel, hexane/ethylacetate/triethylamine), recrystn. in ethylacetate/hexane, elem. anal.;

upstream raw materials:

tetramethylammonium bromide

chromium⁽⁰⁾ hexacarbonyl

Downstream raw materials:

{2-(3(E)-(3-methylbenzylidene)-1-methyl-4-(3-methylphenyl)azetidinylidene)}-pentacarbonylchromium⁽⁰⁾

{2-(3(E)-(4-methylbenzylidene)-1-methyl-4-(4-methylphenyl)azetidinylidene)}-pentacarbonylchromium⁽⁰⁾

3-butyl-5-methyl-2[5H]furanone

pentacarbonyl{1-(1-methoxy-3(E)-phenyl-2-propenylidene)}chromium⁽⁰⁾