As a leading and professional manufacturer of APIs and API intermediates in China,Anhui Dexinjia Biopharm Co., Ltd founded in 2006, Except for the R&D center, our company has built a close cooperation relation with Chinese Academy of Sciences,
img _fcksaAppearance:Off-white to tan powder Storage:Store in dry, dark and ventilated place. Package:according to the clients requirement Application:It is an important raw material and intermediate used in Organic Synthesis, Pharmaceuticals, Agro
Cas:98-98-6
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inquiryItems Standard Result Appearance Off-white crystalline powder Complies Assay 99%min
Cas:98-98-6
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inquiryWelcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our
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inquirySuperiority kono is a leading manufacturer and supplier of chemicals in China. We develop ,produce and distribute high quality pharmaceuticals, intermediates, special chemicals and other fine chemicals. We could give you: 1.Best quali
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inquiry1. Guaranteed purity; 2. Large quantity in stock; 3. Largest manufacturer; 4. Best service after shipment with email; 5. High quality & competitive price; ...... Appearance:White to white lumpy powder Storage:Store at RT. Package:25kg
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inquiryPicolinic acid CAS No.:98-98-6 Name: Picolinic acid Synonyms: 2-Pyridinecarboxylic acid; Pyridine-2-carboxylic acid Molecular Structure Molecular Formula: C6H5NO2 Molecular Weight: 123
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inquiryT he company has advanced technology, as well as a large number of excellent R & D team, to provide customers from the grams to one hundred kilograms and tons of high-quality products, competitive prices and quality service Appearance:White or
The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi
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inquiryCangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new api, intermedi
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Shanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu
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inquiryhebei yanxi chemical co., LTD who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and developm
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Cas:98-98-6
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inquiryProduct Name: 2-Picolinic acid Synonyms: Picolinic acid, 99% 25GR;acidepicolique;alpha-Pyridinecarboxylic acid;alpha-pyridinecarboxylicacid;o-Pyridinecarboxylic acid;o-pyridinecarboxylicacid;Pyridinecarboxylic acid-(2);Pyridine-carboxylique-2 CAS
Cas:98-98-6
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inquiryProduct Description Product website: http://www.finerchem.com/pro01en/id/1905.html Product Name Picolinic acid CAS No. 98-98-6
Our advantages: 1, High quality with competitive price: 1) Standard:BP/USP/EP/Enterprise standard 2) All Purity≥99% 3) We are manufacturer and can provide high quality products with factory price. 2, Fast and safe delivery 1) Parcel can be
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inquiryWITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et
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inquiryName: Picolinic acid Molecular Formula:C6H5NO2 Molecular Weight:123.11 CAS No.:98-98-6 Appearance:Similar White To Slight Yellow Crystal Powder Appearance:Similar White To Slight Yellow Crystal Powder Storage:Store in cool and dry place, away fro
Appearance:White to almost white?powder Storage:Store below +30°C. Package:25kg/drum Application:2-Picolinic acid is used as a chelate for alkaline earth metals. It is also used to prepare picolinato ligated transition metal complexes. In synthetic
Cas:98-98-6
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inquiryOur Adwantage: 1.We have stock so we can delivery quickly at the very day when receive the payment. 2.Best price, first class service, high successful delivery rate. A discount would be given when you make a large order. 3.High qu
Cas:98-98-6
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Cas:98-98-6
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inquiryOur company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At present
Cas:98-98-6
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inquiry2-Picolinic acid CAS: 98-98-6 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic intermed
Cas:98-98-6
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inquiryHello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai
Product Detail Minimum Order Qty. 10 Gram
Cas:98-98-6
Min.Order:10 Gram
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Type:Trading Company
inquirySpecification:USP/EP Month production ablity:50kg/Month Low price& High quality Manufacturer Appearance:white powder Storage:Room Temperature Package:in aluminum bag and foil bag or as customers' require Application:98-98-6 Transportation
1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highly qualifie
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inquiryConditions | Yield |
---|---|
With Langlois reagent In acetonitrile at 25℃; for 12h; Irradiation; Sealed tube; | 98% |
With tert-butyldimethylsilyl chloride In methanol; water at 20℃; for 0.5h; Green chemistry; | 97% |
Stage #1: 2-Hydroxymethylpyridine With sodium hydroxide; Rh(trop2NH)(PPh3)(OTf); water; cyclohexanone at 25℃; for 16h; Inert atmosphere; Stage #2: With hydrogenchloride; water chemoselective reaction; | 96% |
1-(pyridine-2-yl)ethanol
2-Picolinic acid
Conditions | Yield |
---|---|
With 1,10-Phenanthroline; oxygen; copper diacetate; potassium hydroxide In dimethyl sulfoxide at 130℃; under 3000.3 Torr; for 12h; Autoclave; | 79% |
Conditions | Yield |
---|---|
With potassium phosphate buffer at 30℃; for 144h; Rhodococcus sp. AJ270 cells; | 46.3% |
With phosphate buffer at 30℃; for 144h; rhodococcus rhodocrous AJ270, pH 7.0; | 30% |
With acetic acid tert-butyl ester; sulfuric acid In acetic acid at 45℃; for 0.1h; Ritter reaction; In flow; |
C16H17NO2
A
2-Picolinic acid
B
C16H15NO2
C
4-methoxybenzoic acid
Conditions | Yield |
---|---|
Stage #1: C16H17NO2 With oxygen; sodium hydride In tetrahydrofuran at 0 - 20℃; for 6h; Stage #2: With hydrogenchloride In water | A 18% B 84% C 18% |
Conditions | Yield |
---|---|
With sulfuric acid; ozone; acetic acid; manganese(II) acetate at 16℃; for 1h; | 97% |
Stage #1: α-picoline With β‐cyclodextrin In water at 60℃; for 0.5h; Stage #2: With sulfuric acid; dihydrogen peroxide; boric acid In water at 40℃; for 6h; | 89.3% |
With potassium hydroxide; oxygen; 18-crown-6 ether In 1,2-dimethoxyethane at 25℃; for 96h; | 85% |
Conditions | Yield |
---|---|
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; laccase from Trametes versicolor; oxygen In water at 20℃; for 12h; Temperature; Enzymatic reaction; | 99% |
With 3-bromo-2-(1-hydroxycyclohexyl)[1,2]selenazolo[2,3-a]pyridinium chloride; dihydrogen peroxide In water; tert-butyl alcohol at 20℃; for 2h; | 96% |
With oxygen; Langlois reagent In acetonitrile at 25℃; under 760.051 Torr; for 12h; Irradiation; Green chemistry; | 95% |
C15H14ClNO
A
2-Picolinic acid
B
C15H12ClNO
C
para-chlorobenzoic acid
Conditions | Yield |
---|---|
Stage #1: C15H14ClNO With oxygen; sodium hydride In tetrahydrofuran at 0 - 20℃; for 10h; Stage #2: With hydrogenchloride In water | A 51% B 45% C 51% |
Conditions | Yield |
---|---|
With aluminum oxide; water; sodium hydroxide at 100℃; for 0.0333333h; Cannizzaro Reaction; Microwave irradiation; | A 47% B 47% |
With N,N,N',N'-tetramethylguanidine In water at 20℃; for 7h; Cannizzaro reaction; | A 39% B 36% |
Conditions | Yield |
---|---|
With sodium hydroxide; sulfuric acid; dihydrogen peroxide In water; toluene | 50% |
Conditions | Yield |
---|---|
With sodium hydroxide; dihydrogen peroxide In water; toluene | 50% |
Conditions | Yield |
---|---|
With ammonium formate; silica gel; zinc In methanol at 20℃; for 0.166667h; chemoselective reaction; | 88% |
With triphenylphosphine; [MoO2Cl2(dmf)2] In tetrahydrofuran for 2h; Heating; | 81% |
Conditions | Yield |
---|---|
With acetic acid | 77% |
2-(Bromomethyl)pyridine
2-Picolinic acid
Conditions | Yield |
---|---|
With 5,10,15,20-tetra(4-nitrophenyl) porphyrinato iron chloride; [bis(acetoxy)iodo]benzene; water In methanol at 50℃; for 12h; | 89% |
Conditions | Yield |
---|---|
Stage #1: 2-iodopyridine; carbon monoxide With potassium carbonate In water at 100℃; under 3750.38 Torr; for 15h; Autoclave; Stage #2: With hydrogenchloride In water | 37% |
With water; sodium carbonate; palladium diacetate at 20 - 165℃; under 10501.1 - 22502.3 Torr; for 0.333333h; microwave irradiation; | 15% |
Conditions | Yield |
---|---|
With tert.-butylhydroperoxide; [O-Cu4(triethanolamine)4(BOH)4][BF4]2 In acetonitrile at 69.84℃; for 6h; Title compound not separated from byproducts.; | |
With copper(ll) sulfate pentahydrate; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; N-(4-fluorophenyl)-1-(pyroll-2-yl)methanimine; dihydrogen peroxide; potassium carbonate In water at 60℃; for 1h; | |
With sodium hypochlorite In 1,2-dimethoxyethane; water at 20℃; for 4h; | A 52 %Chromat. B 43 %Chromat. |
Conditions | Yield |
---|---|
With manganese; bis(triphenylphosphine)nickel(II) chloride; 2.9-dimethyl-1,10-phenanthroline In N,N-dimethyl-formamide at 20℃; under 760.051 Torr; for 20h; Schlenk technique; Inert atmosphere; Glovebox; |
Conditions | Yield |
---|---|
With tetraethylammonium bromide; potassium oxide In N,N-dimethyl-formamide at 30℃; for 3.5h; | 59% |
With 6-(pyridin-2-yl)-6,7-dihydrobenzo[g]naphtho[2,3-c](5,8,13,14-tetraone)cinnolinyl; triethylamine In methanol at 20℃; for 30h; |
Conditions | Yield |
---|---|
With sodium carbonate In ethanol; water |
Conditions | Yield |
---|---|
With acetic acid In water; benzonitrile |
Conditions | Yield |
---|---|
With water; lithium hydroxide In tetrahydrofuran; methanol at 20℃; for 4h; | A n/a B 95% |
dicobalt octacarbonyl
2-Picolinic acid
Conditions | Yield |
---|---|
With dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; potassium acetate In 1,4-dioxane; water at 20℃; for 16h; Schlenk technique; Inert atmosphere; chemoselective reaction; | 78% |
dicobalt octacarbonyl
pyridin-2-yl trifluoromethanesulfonate
2-Picolinic acid
Conditions | Yield |
---|---|
With dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; potassium acetate In 1,4-dioxane; water at 20℃; for 16h; Schlenk technique; Inert atmosphere; chemoselective reaction; | 75% |
Conditions | Yield |
---|---|
With (4,4'-di-tert-butyl-2,2'-dipyridyl)-bis-(2-phenylpyridine(-1H))-iridium(III) hexafluorophosphate; 2-(diphenylphosphino)-2’(3-(dimethylamino)-3-oxopropyl)-6’-(3-(icosyloxy)-3-oxopropyl)biphenyl; water; palladium diacetate; N-ethyl-N,N-diisopropylamine In toluene under 760.051 Torr; for 16h; Inert atmosphere; Schlenk technique; Irradiation; | 78% |
A
2-Picolinic acid
Conditions | Yield |
---|---|
With sodium hydroxide In ethanol at 90℃; for 8h; | |
With sodium hydroxide In ethanol at 100℃; for 12h; Schlenk technique; |
Conditions | Yield |
---|---|
With C18H12Cl2Cu2N2O6 at 25℃; pH=7.9; Kinetics; Concentration; pH-value; Reagent/catalyst; | |
With sodium hydroxide In water; acetonitrile at 25℃; Kinetics; Mechanism; |
pyridine-2-carboxylic acid N-tert-butylamide
2-Picolinic acid
Conditions | Yield |
---|---|
With sodium hydroxide |
Conditions | Yield |
---|---|
Stage #1: 2-Cyanopyridine With Br(1-)*C24H30N4Rh(1+); water In isopropyl alcohol at 25℃; for 0.5h; Inert atmosphere; Stage #2: With potassium tert-butylate In isopropyl alcohol at 25℃; for 2h; Inert atmosphere; | A 48% B 52% |
Conditions | Yield |
---|---|
With [PhCOPd(PtBu3)I]; dtbpf In 2-methyltetrahydrofuran at 80℃; for 18h; Inert atmosphere; | 53% |
Conditions | Yield |
---|---|
With Graphite; sodium hydroxide In water at 25℃; for 3h; Reagent/catalyst; Electrolysis; |
Conditions | Yield |
---|---|
With Graphite; sodium hydroxide In water at 25℃; for 3h; Electrolysis; | |
With Graphite; sodium hydroxide In water at 25℃; for 6h; pH=11.5 - 13.5; Reagent/catalyst; pH-value; Electrolysis; |
2-Picolinic acid
pyridine-2-carbonyl chloride
Conditions | Yield |
---|---|
With thionyl chloride In neat (no solvent) at 20℃; for 48h; Inert atmosphere; | 100% |
With thionyl chloride In benzene at 0℃; for 12h; Reflux; | 60% |
With thionyl chloride |
Conditions | Yield |
---|---|
With (R)-1-[(S)-2-(dicyclohexylphosphino)ferrocenyl]ethyldiphenylphosphine; hydrogen; di(norbornadiene)rhodium(I) tetrafluoroborate In methanol at 60℃; under 75006 Torr; for 20h; Product distribution; Further Variations:; Reagents; Solvents; ratio; | 100% |
With hydrogen; platinum(IV) oxide In ethanol at 125℃; under 18751.5 Torr; for 1h; Irradiation; microwave irradiation; | 99% |
With hydrogen; platinum(IV) oxide In ethanol at 80℃; under 5171.62 Torr; for 0.166667h; microwave irradiation; | 99% |
2-Picolinic acid
pyridine-2-carboxylic anhydride
Conditions | Yield |
---|---|
Stage #1: 2-Picolinic acid With N-ethyl-N,N-diisopropylamine In tetrahydrofuran at 0℃; Stage #2: With bis(trichloromethyl) carbonate In tetrahydrofuran at 0 - 20℃; | 100% |
With 1-ethyl-piperidine; Phenyl N-methyl-N-phenylphosphoramidochloridate In dichloromethane for 0.5h; Ambient temperature; | |
With 1-ethyl-piperidine; N,N'-diphenylphosphorodiamidic chloride In dichloromethane for 0.5h; Ambient temperature; | |
With 2,4,6-trimethyl-pyridine; bis(trichloromethyl) carbonate In tetrahydrofuran for 0.0166667h; |
2-Picolinic acid
4-chloro-pyridine-2-carbonyl chloride
Conditions | Yield |
---|---|
With thionyl chloride In N,N-dimethyl-formamide at 80℃; for 12h; | 100% |
With thionyl chloride; N,N-dimethyl-formamide at 50℃; for 17.5h; Reflux; | 100% |
With thionyl chloride; sodium bromide at 80℃; for 22h; | 98% |
2-Picolinic acid
rac-methylbenzylamine
pyridine-2-carboxylic acid (1-phenyl-ethyl)amide
Conditions | Yield |
---|---|
With dmap; benzenesulfonic anhydride In dichloromethane at 20℃; for 1h; | 100% |
With dmap In dichloromethane at 20℃; for 1h; | 93% |
With pyridine; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate In N,N-dimethyl-formamide at 20℃; Inert atmosphere; | 73% |
piperidine
2-Picolinic acid
2-(N,N-penta-1,5-diyl-carboxamido)-pyridine
Conditions | Yield |
---|---|
With dmap; benzenesulfonic anhydride In dichloromethane at 20℃; for 1h; | 100% |
Stage #1: 2-Picolinic acid With iodine; triethylamine; phosphorous acid trimethyl ester In dichloromethane for 0.166667h; Cooling with ice; Inert atmosphere; Stage #2: piperidine In dichloromethane at 20℃; for 2h; Inert atmosphere; Cooling with ice; | 85% |
With dmap In dichloromethane at 20℃; for 1h; | 82% |
Conditions | Yield |
---|---|
With dmap; benzenesulfonic anhydride In dichloromethane at 20℃; for 1h; | 100% |
With 4-methyl-morpholine; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; | 91% |
With benzotriazol-1-ol; diisopropyl-carbodiimide In dichloromethane at 20℃; |
2-Picolinic acid
3-hydroxypyridine-2-carboxamide
N-(3-hydroxypicolinoyl)picolinamide
Conditions | Yield |
---|---|
Stage #1: 2-Picolinic acid With dmap; 4-pyrrolidin-1-ylpyridine; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 0.333333h; Inert atmosphere; Stage #2: 3-hydroxypyridine-2-carboxamide at 20℃; for 73h; Reflux; Inert atmosphere; | 100% |
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 1h; Cooling with ice; | 100% |
2-Picolinic acid
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 1h; Cooling with ice; | 100% |
Conditions | Yield |
---|---|
With O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; | 100% |
2-Picolinic acid
ethyl 2,4-di-O-benzoyl-1-thio-α-L-rhamnopyranoside
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 2.5h; | 100% |
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 2.5h; | 100% |
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 2.5h; | 100% |
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 2h; Inert atmosphere; | 91% |
2-Picolinic acid
2-amino-6-(1,1-dimethylethyl)-4,5,6,7-tetrahydro-benzo[b]thiophene-3-carboxylic acid methyl ester
Conditions | Yield |
---|---|
With dmap; 2-chloro-1-methyl-pyridinium iodide; triethylamine In acetonitrile at 60℃; for 20h; | 100% |
pyridine-2-carbaldehyde
2-Picolinic acid
diphenyltin(IV) oxide
2-amino-phenol
[(OC6H4NCHC5H4N)Sn(NC5H4CO2)(C6H5)2]
Conditions | Yield |
---|---|
In benzene soln. of Sn oxide and picolinic acid in C6H6 was added to soln. of aldehyde and phenol; refluxed for 40 min; concd. (vac.); filtered; elem. anal.; | 99.5% |
Conditions | Yield |
---|---|
With tetrachloromethane; Bis(p-nitrophenyl) phosphate; 3-Methyl-1-phenyl-2-phospholene 1-oxide In toluene at 110℃; for 20h; Green chemistry; | 99% |
Stage #1: 2-Picolinic acid With oxalyl dichloride; N,N-dimethyl-formamide In dichloromethane at 0 - 20℃; Inert atmosphere; Stage #2: benzylamine With triethylamine In dichloromethane at 0 - 20℃; for 3h; Inert atmosphere; | 98% |
Stage #1: 2-Picolinic acid With oxalyl dichloride; N,N-dimethyl-formamide In dichloromethane at 0 - 20℃; Stage #2: benzylamine With triethylamine In dichloromethane at 0 - 20℃; for 2.5h; | 98% |
2-Picolinic acid
L-tryptophan methyl ester
(S)-methyl3-(1H-indol-3-yl)-2-(picolinamido)propanoat
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In dichloromethane at 20℃; for 16h; Inert atmosphere; | 99% |
Stage #1: 2-Picolinic acid With N-ethyl-N,N-diisopropylamine; N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate In N,N-dimethyl-formamide at 0℃; for 0.5h; Stage #2: L-tryptophan methyl ester at 20℃; for 12h; | 90% |
With triethylamine; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 12h; | 82% |
With 4-methyl-morpholine; benzotriazol-1-ol; N-(3-dimethylaminopropyl)-N-ethylcarbodiimide In dichloromethane 2 h, 0 deg C, 2 h, 20 deg C; |
Conditions | Yield |
---|---|
With triethylamine; p-toluenesulfonyl chloride In dichloromethane at 40 - 50℃; | 99% |
2-Picolinic acid
(2S,3S)-1,4-bis(phenylmethoxy)-2,3-diaminobutane
(2S,3S)-1,4-dibenzyloxy-2,3-bis(2-pyridinoylamino)butane
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 0℃; | 99% |
Conditions | Yield |
---|---|
In water to aq. soln. Na2(PdCl4), prepared in situ by react. PdCl2 and NaCl, was added pyridine-2-carboxylic acid in water and stirred for 2 h; ppt. was filtered, washed with water and acetone, and dried in vacuo; elem. anal.; | 99% |
Conditions | Yield |
---|---|
In methanol mixing MeOH (or EtOH) solns. of stoich. amts. of Hg(OAc)2 and carboxylic acid; elem. anal.; | 99% |
Conditions | Yield |
---|---|
In methanol stoich. amts., refluxing for 30-45 min; cooling to -15°C, filtration, pptn. on standing; | 99% |
In methanol N2-atmosphere; |
2-Picolinic acid
iridium(III) bis[2-(4,6-difluorophenyl)pyridinato]picolinate
Conditions | Yield |
---|---|
With Na2CO3 In not given Ir-complex reacted with ligand in the presence of Na2CO3; | 99% |
With sodium carbonate In 1,2-dimethoxyethane for 9h; Inert atmosphere; Reflux; | 91% |
With sodium carbonate In 1,2-dimethoxyethane at 85℃; for 9h; Inert atmosphere; | 91% |
With Na2CO3 In 2-ethoxy-ethanol soln. Ir complex, ligand and Na2CO3 in 2-ethoxyethanol was refluxed for 24 h; solvent was roto-evapd., residue was chromed. on silica (CH2Cl2 - n-hexane); | 75% |
2-Picolinic acid
1,1’-bi-2-naphthol
tri-n-propyl borate
C26H16BNO4
Conditions | Yield |
---|---|
In toluene binaphthol mixed with B-compd. in dry toluene under Ar, refluxed with constant stirring at <=90°C, cooled to 60-70°C after 8h, dried picolinic acid added, refluxed for several hours; filtered, washed with toluene and methanol, dried in vac.,; | 99% |
2-Picolinic acid
5-(4-methoxybenzyloxy)pent-3-yn-2-ol
5-(4-methoxybenzyloxy)-3-pentyn-2-yl pyridine-2-carboxylate
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; Cooling with ice; | 99% |
2-Picolinic acid
2-(4-phenylcyclohexylidene)ethyl picolinate
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; Cooling with ice; | 99% |
2-Picolinic acid
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 5h; Cooling with ice; | 99% |
2-Picolinic acid
(S)-methyl 2-amino-4,4-dimethylpentanoate hydrochloride
C14H20N2O3
Conditions | Yield |
---|---|
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; | 99% |
2-Picolinic acid
1,3-bis[2,6-diisopropylphenyl]imidazolium chloride
Conditions | Yield |
---|---|
With potassium carbonate In tetrahydrofuran for 12h; Inert atmosphere; Reflux; | 99% |
With caesium carbonate In 1,4-dioxane at 80℃; for 20h; Schlenk technique; Inert atmosphere; | 65% |
2-Picolinic acid
Conditions | Yield |
---|---|
With dmap; dicyclohexyl-carbodiimide In dichloromethane at 20℃; for 2h; Cooling with ice; | 99% |
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