tetramethylammonium [2-methoxybenzoyl(pentacarbonyl)]chromate

Base Information

Chemical Name:tetramethylammonium [2-methoxybenzoyl(pentacarbonyl)]chromate
CAS No.:144744-50-3
Molecular Formula:C₄H₁₂N*C₁₃H₇CrO₇
Molecular Weight:401.336
Hs Code.:

Synonyms:

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Chemical Property of tetramethylammonium [2-methoxybenzoyl(pentacarbonyl)]chromate

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Technology Process of tetramethylammonium [2-methoxybenzoyl(pentacarbonyl)]chromate

There total 1 articles about tetramethylammonium [2-methoxybenzoyl(pentacarbonyl)]chromate 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: 76.0%

: 64-20-0
tetramethylammonium bromide

: 199620-14-9,13007-92-6
chromium⁽⁰⁾ hexacarbonyl

: 31600-86-9
2-methoxyphenyllithium

: 144744-50-3
tetramethylammonium [2-methoxybenzoyl(pentacarbonyl)]chromate

Guidance literature:: In diethyl ether; water; Ar atmosphere; dropwise addn. of 0-methoxyphenyllithium to suspn. of Co-complex (-78°C), stirring (1.5 h), warming to room temp., stirring (2 h), concn., addn. of water, filtration, addn. of aq. NMe4Br (stirring); extn. (CH2Cl2), washing of org. layer (saturated NaCl), removal of solvent, extn. (CH2Cl2), crystn. on ether addn., filtration off;
DOI:10.1246/bcsj.66.1187

Reference yield: 44.0%

: 144744-50-3
tetramethylammonium [2-methoxybenzoyl(pentacarbonyl)]chromate

: 2216-51-5
(-)-menthol

: tetracarbonyl[(1R,2S,5R)-(-)menthyloxy(2-methoxybenzylidene)(O,Cr)]chromium

: pentacarbonyl[(1R,2S,5R)-(-)menthyloxy-2-methoxybenzylidene]chromium

Guidance literature:: With acetyl bromide; In dichloromethane; (Ar); Schlenk technique; acetyl bromide was added to soln. of Cr complexin CH2Cl2 at -50°C; mixt. was stirred at -50°C for 30 min ; soln. of menthol in CH2Cl2 was added dropwise at -40°C; mixt. was stirred for 18 h and warmed to; room temp.; solvent removed; residue dissolved in petroleum ether; filtered over silica gel; evapd.; chromd. (Ar satd. silica gel, -5°C, petroleum ether/CH2Cl2);
DOI:10.1016/S0022-328X(03)00045-7

Reference yield: 35.0%

: 144744-50-3
tetramethylammonium [2-methoxybenzoyl(pentacarbonyl)]chromate

: 75-36-5
acetyl chloride

: chromium (o-methoxyphenyl)acetoxycarbene pentacarbonyl complex

Guidance literature:: In dichloromethane; Ar atmosphere; dropwise addn. of acetyl chloride to soln. of Co-complex (-20°C), stirring (2 h); addn. of water, extn. ((CH2Cl2), washing of org. layer (saturated NaCl), drying (over MgSO4), concn., chromy. (silica gel, hexane/CH2Cl2/ether, orange band); elem. anal.;
DOI:10.1246/bcsj.66.1187