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Halogenation Reagents

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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.

structure Product no. description cas pricing
942961 Bis(2-methoxyethyl)aminosulphur trifluoride, 95% 202289-38-1 Pricing
1000173 4-tert-Butyl-2,6-dimethylphenylsulphur trifluoride, 90% 947725-04-4 Pricing
299386 1-Chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate), 96% 140681-55-6 Pricing
168478 Diethylaminosulfur trifluoride, 95% 38078-09-0 Pricing
115351 N-Fluorobenzenesulfonimide, 98% 133745-75-2 Pricing
112923 Triethylamine trihydrofluoride, 98% 73602-61-6 Pricing
322858 Hydrogen fluoride-pyridine, 70% HF 62778-11-4 Pricing
473882 (Trifluoromethyl)trimethylsilane, 98% 81290-20-2 Pricing
544572 Silver(I) fluoride, 99% 7775-41-9 Pricing

Chlorination

structure Product no. description cas pricing
199549 N-Chlorosuccinimide, 97.5% 128-09-6 Pricing
376678 Cyanuric chloride, 99% 108-77-0 Pricing
245234 Dichloroisocyanuric acid sodium salt, 97.5% 2893-78-9 Pricing
194371 Oxalyl chloride, 98% 79-37-8 Pricing
142257 Trichloroisocyanuric acid, 98.5% 87-90-1 Pricing

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

structure Product no. description cas pricing
272873 N-Bromosuccinimide, 99% 128-08-5 Pricing
569341 1,3-Dibromo-5,5-dimethylhydantoin, 98% 77-48-5 Pricing
289932 Tetrabutylammonium tribromide, 98% 38932-80-8 Pricing

Iodination

structure Product no. description cas pricing
922334 Iodine, 99.5%, extra pure 7553-56-2 Pricing
275643 N-Iodosuccinimide, 99% 516-12-1 Pricing