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     Halogenation is one of the most fundamental and important processes. Halogenated compounds are of extreme importance as building blocks in organic synthesis. Recently, more halogenated compounds have been used as starting materials in modern syntheses. In response to this situation, many novel halogenating reagents have been developed.

     J&K Scientific offers a wide range of novel halogenating reagents, which overcome the traditional disadvantages of their use, such as strict handling, and meet requirements for safe and environmentally responsible synthesis.

Fluorination

4-tert-Butyl-2.6-dimethylphenylsulphur trifluoride(Cat. No. 1000173) is a novel nucleophilic fluorinating reagent, first reported by Umemoto and co-workers. Differing from other existing fluorinating reagents, such as DAST, it is a crystalline solid with high thermal stability and less fuming character, so it is easier to handle (at 0℃-rt.). It is able to transfer a hydroxyl or carbonyl group to the corresponding fluorinated compounds with good yields under mild conditions. Furthermore, it can even fluorinate thioketones or thioesters.

Reference
T. Umemoto, R.P. Singh, Y.Xu, N.Saito, J. Am. Chem. Soc. 2010,132,18199.

Cat. No.
Description
CAS
Structure
Bis(2-methoxyethyl)aminosulfur trifluoride, 95%
4-tert-Butyl-2,6-dimethylphenylsulphur trifluoride, 90%
N-Chloromethyl-N'-fluorotriethylenediammonium bis(tetrafluoroborate), 96%
Diethylaminosulfur trifluoride, 95%
N-Fluorobenzenesulfonimide, 98%
Triethylamine trihydrofluoride, 98%
Hydrogen fluoride-pyridine, 70% HF
(Trifluoromethyl)trimethylsilane, 98%
Silver(I) fluoride, 99%
AgF

Chlorination

Cat. No.
Description
CAS
Structure
N-Chlorosuccinimide, 97.5%
Cyanuric chloride, 99%
Dichloroisocyanuric acid, sodium salt, 97.5%
Oxalyl chloride, 98%
Trichloroisocyanuric acid, 98.5%

Bromination

References
[1] U.S. Pat. Appl. Publ., 20080275253, 06 Nov 2008
[2] PCT Int. Appl., 2007141798, 13 Dec, 2007
[3] Bulletin of the Chemical Society of Japan, 67(7), 1918-21; 1994

Cat. No.
Description
CAS
Structure
N-Bromosuccinimide, 99%
1,3-Dibromo-5,5-dimethylhydantoin, 98%
Tetrabutylammonium tribromide, 98%

Iodination

Cat. No.
Description
CAS
Structure
Iodine, 99.5%
I2
N-Iodosuccinimide, 99%

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