68177 Tetramethylammonium chloride - AK Scientific
 
 
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  Catalog ID # 68177
Tetramethylammonium chloride
, 98%
 



IDENTITY
CAS Registry #:[75-57-0]
MDL Number:MFCD00011628
MF:C4H12ClN
MW:109.5978
EINECS:200-880-8
BRN:3911201
SPECIFICATIONS & PROPERTIES
Purity:98%
Physical Form:White crystalline powder
Melting Point:420 °C
Density:1.17
Shipping:Normal Temperature
Note:May cont. ca 2% silica as anticaking agent. May better pre-dry the catalyst to <0.2% water to avoid competition from hydrolytic displacement

REVIEW

 Phase transfer catalyst: Thermally-stable phase-transfer catalyst which has been used in nucleophilic displacement reactions of aryl nitro groups with KF in tetramethylene sulfone: J. Org. Chem., 56, 6406 (1991). A detailed study of the halex Cl/F exchange reaction of activated aryl chlorides, for example the conversion of 1,2-dichloro-4-nitrobenzene to 2-chloro-1-fluoro-4-nitrobenzene in DMSO at 120 degree C showed tetramethylammonium chloride to be superior to other common phase-transfer catalysts. It was necessary to pre-dry the catalyst to <0.2% water to avoid competition from hydrolytic displacement: Chem. Commun., 297 (1996).

Risk Description(s)
R25:Toxic if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin

Safety Description(s)
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39:Wear suitable gloves and eye/face protection.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).



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CATEGORIES

 Reagents > Phase Transfer Catalysts

USEFUL LINKS

  @PubChem