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J&K Green Reagents

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Green chemistry has become a central focus of chemical research and development in the 21st century. Some of the most widely used reagents, such as NXS (including NBS, NCS and NIS), produce reactions that are ‘greener’ than traditional reactions with Cu catalysts in halogenation. There are also many common reagents which are harmful and/or create pollution so chemists are constantly working to generate alternate ‘green’ reagents to satisfy growing demand from academia and industry.

We understand that chemistry is a tool for scientific research and manufacturing, but this tool comes with a duty to make our world a better place – one with cleaner oceans, fresher air and safer food. J&K is proud to provide environmentally friendly green reagents, including synthetic reagents, solvents, catalysts & ligands.

■ Green Synthetic Reagents

● Featured Products:

1. Caro’s acid (Potassium peroxomonosulfate, 4.5% active oxygen, 229941, 37222-66-5)

Reference 1: Caro’s acid with acetone for epoxide formation: Angew. Chem. Int. Ed., 2012, 51(10), 2443-2447 Reference 2: Caro’s acid for sulfones formation: Bioorg. Med. Chem.Lett., 2012, 22(15), 5114-5117 Reference 3 - 5: Caro’s acid with MX for C-X formation: Org. Lett., 2013, 15(24), 6226-6229; Tetrahedron Lett.,2014, 55(13), 2127-2129; Synthetic Commun.,2002, 32(15), 2319-2324

1. MMPP (Magnesium bis(monoperoxyphthalate) hexahydrate, 70%, 566277, 84665-66-7) 2.1MMPP for epoxide formation:

2.2MMPP for N-Oxide formation:

3. NFSI(N-Fluorobenzenesulfonimide, 98%, 115351, 133745-75-2) for fluorination:

4. Hantzch ethyl ester (Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate, 98%, 505196, 1149-23-1) for reduction:

5. COMU((1-Cyano-2-ethoxy-2-oxoethylidenaminooxy)dimethylamino-morpholino -carbenium hexafluorophosphate, 98%, 1150273, 1075198-30-9) for amide formation:

6. DPAT (Diphenylammoniumtrifluoromethanesulfonate, 98%, 802121, 164411-06-7) for one pot ring closing:

structure Product no. description cas pricing
229941 Potassium peroxomonosulfate, 4.5% active oxygen 37222-66-5 Pricing
115351 N-Fluorobenzenesulfonimide, 98% 133745-75-2 Pricing
272873 N-Bromosuccinimide, 99% 128-08-5 Pricing
199549 N-Chlorosuccinimide, 97.5% 128-09-6 Pricing
275643 N-Iodosuccinimide, 99% 516-12-1 Pricing
580675 Phenyltrimethylammonium tribromide, 97% 4207-56-1 Pricing
593050 Pyridinium tribromide, 90% 39416-48-3 Pricing
286332 Sodium hypochlorite, 5% available chlorine 7681-52-9 Pricing
935710 Sodium hypochlorite, 13% available chlorine 7681-52-9 Pricing
946474 1,3-Dichloro-5,5-dimethylhydantoin, 98% 118-52-5 Pricing
944192 1,3-Dichloro-5,5-dimethylhydantoin, 68% available chlorine 118-52-5 Pricing
194371 Oxalyl chloride, 98% 79-37-8 Pricing
197054 Phenyl dichlorophosphate, 97% 770-12-7 Pricing
499800 Tetramethylammonium fluoride tetrahydrate, 98% 17787-40-5 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
107860 Iodine monochloride, 99% 7790-99-0 Pricing
587039 Benzyltrimethylammonium dichloroiodate, 98% 114971-52-7 Pricing
100922 Sodium percarbonate 15630-89-4 Pricing
401569 Urea hydrogen peroxide, contains 35 wt.% H2O2, stabilized 124-43-6 Pricing
235286 2,2,6,6-Tetramethylpiperidinooxy, 98% 2564-83-2 Pricing
266601 Sulfur trioxide pyridine complex, 98%, tech., active SO3 ca. 48 - 50% 26412-87-3 Pricing
201085 2-Iodoxybenzoic acid, stabilized 61717-82-6 Pricing
187984 Aluminum tert-butoxide, 99% 556-91-2 Pricing
275928 N,N'-Dicyclohexylcarbodiimide, 99% 538-75-0 Pricing
162363 Sodium periodate, 99% 7790-28-5 Pricing
566277 Monoperoxyphthalic acid magnesium salt hexahydrate, 70% 84665-66-7 Pricing
505196 Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate, 98% 1149-23-1 Pricing
610284 Catecholborane, 1.0 M solution in THF, J&KSeal 274-07-7 Pricing
299272 Formic acid, 98% 64-18-6 Pricing
1150273 (1-Cyano-2-ethoxy-2-oxoethylidenaminooxy)dimethylamino-morpholino-carbenium hexafluorophosphate, 98% 1075198-30-9 Pricing
180331 N,N'-carbonyldiimidazole, 98% 530-62-1 Pricing
190359 Isobutyl chloroformate, 98% 543-27-1 Pricing
102492 2-Chloro-1-methylpyridinium iodide, 97% 14338-32-0 Pricing
191243 N,N'-Disuccinimidyl carbonate, 99% 74124-79-1 Pricing
180331 N,N'-carbonyldiimidazole, 98% 530-62-1 Pricing
186836 N-Ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline, 98% 16357-59-8 Pricing
211112 N-(3-Dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride, 99% 25952-53-8 Pricing
260292 2-Chloro-4,6-dimethoxy-1,3,5-triazine, 98% 3140-73-6 Pricing
292269 1,8-Diazabicyclo[5.4.0]undec-7-ene, 98% 6674-22-2 Pricing
802121 Diphenylammonium trifluoromethanesulfonate, 98% 164411-06-7 Pricing

■ Green Solvents

● 2-Methyl-tetrahydrofuran (2-MeTHF) can be derived from renewable resources (e.g., furfural or levulinic acid) and is a promising alternative solvent in the search for environmentally benign synthesis strategies.

● Cyclopentyl methyl ether (CPME) has been used in chemical synthesis as an alternative to hazardous solvents. Wide synthetic utility and a detailed toxicity study suggest CPME as a green and sustainable solvent of choice for modern chemical transformations.

Reference: 1) 2-Methyltetrahydrofuran (2-MeTHF): a biomass-derived solvent with broad application in organic chemistry, ChemSusChem.,2012, 5(8), 1369-1379; 2) The toxicological assessment of cyclopentyl methyl ether (CPME) as a green solvent, Molecules, 2013, 18, 3183-3194

Please also see ●Ionic Liquid - Page ** ●Catalysts & Ligands - Page **

structure Product no. description cas pricing
203918 2-Methyltetrahydrofuran, 99%, stabilized with BHT 96-47-9 Pricing
284814 2-Methyltetrahydrofuran, 99%, SuperDry, water≤20 ppm, J&KSeal 96-47-9 Pricing
913731 Cyclopentyl methyl ether, 99% 5614-37-9 Pricing