天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

Pyridine compound

Pyridine compound is one of the most widely developed and used heterocyclic compound. As an important fine chemical raw material, its derivatives mainly include alkyl pyridine, halogenated pyridine, aminopyridine, bromo pyridine, picoline , iodine pyridine, chloropyridine, nitropyridine-hydroxypyridine, benzyl pyridine, ethyl pyridine, pyridine cyano, fluoro pyridine, dihydropyridine, etc., in which the pesticide accounts for about 50% of the total consumption of pyridine products, feed additive about 30% and  medicine and other areas 20%.

Pyridine is a colorless or slightly yellow liquid that has weak alkaline and special odor. It is an important chemical raw material and solvent, which naturally presents in coal tar, shale oil, gas and petroleum and is miscible with most of the water, alcohols, ethers, petroleum ether, oils, benzene, chloroform and other organic solvents.

The important derivatives of pyridine mainly include nicotinic acid, nicotinamide, isonicotinic hydrazide, nicotine, strychnine, and vitamin B6.

Pyridine has a close hexagonal structure that is similar to benzene. Because of the electron-withdrawing effect of the nitrogen atom in the ring, the electron density of 2,4,6 positions is less than that of 3,5 positions. In an acidic medium, electrophilic substitution reactions occur in the 3,5 positions and nucleophilic reactions, such as amination, alkylation, arylation, acylation, occur in the 2,4,6 positions. Pyridine is a weak tertiary amine, which can form different water-soluble salts with various acids (such as picric acid, perchloric acid or the like) in an ethanol solution. Due to the alkaline of pyridine, it can generate hydrochloride (C5H5N•HCl)with hydrochloric acid. In the effect of nickel catalyst at 200 ℃ and 15-30MPa, it can generate piperidine via hydrogenation or electrolysis reduction. The reduction of pyridine is easier than benzene, while the oxidation is more difficult than benzene. But we can oxidize pyridine by the catalysis of hydrogen peroxide or peroxy acids. N-pyridine oxide is an important pyridine derivative, which is easier for the happen of aryl group electrophilic substitution reaction because the oxidation of nitrogen atoms make the formation of positively charged pyridinium cation impossible. Electrophilic substitutions, such as pyridine nitration, sulfonation, halogenation, are relatively difficult, but the previous actions are slightly easier than halogenation. We can obtain 3,5-dichloro-pyridine or 3,4,5-trichloro pyridine via pyridine nitration and sulfonation at more than 200℃. Pyridine can form many crystalline complex compounds with various metal ions.

Click on the specific product, view the latest prices of the products, information, serving information
Structure Chemical Name CAS MF
4-Amino-6-hydroxypyridine-3-carboxylic acid 4-Amino-6-hydroxypyridine-3-carboxylic acid 85145-48-8 C6H6N2O3
2-Methoxy-5-bromopyridine-3-boronic acid
2-Methoxy-5-bromopyridine-3-boronic acid C6H7BBrNO3
4-SULFONICOTINIC ACID 4-SULFONICOTINIC ACID 14045-15-9 C6H5NO5S
N-CBZ-TRANS-4-FLUORO-L-PROLINONITRILE N-CBZ-TRANS-4-FLUORO-L-PROLINONITRILE 1212342-08-9 C13H13FN2O2
2-CHLORO-3-FORMYL-6-PICOLINE 2-CHLORO-3-FORMYL-6-PICOLINE 91591-69-4 C7H6ClNO
(4,6-DICHLOROPYRIDIN-3-YL)BORONIC ACID (4,6-DICHLOROPYRIDIN-3-YL)BORONIC ACID C5H4BCl2NO2
Y-39983 hydrochloride Y-39983 hydrochloride 471843-75-1 C16H16N4O.HCl
6,7-dihydropyrrolo[3,4-b]pyridin-5-one 6,7-dihydropyrrolo[3,4-b]pyridin-5-one 40107-93-5 C7H6N2O
2-Amino-6-bromo-3-chloropyridine 2-Amino-6-bromo-3-chloropyridine 1060815-73-7 C5H4BrClN2
ethyl 2-(chloromethyl)-4-(2,4-dichlorophenyl)-5-cyano-6-methylpyridine-3-carboxylate ethyl 2-(chloromethyl)-4-(2,4-dichlorophenyl)-5-cyano-6-methylpyridine-3-carboxylate 915297-07-3 C17H13Cl3N2O2
N-Benzyl-6-chloro-4-pyrimidinamine N-Benzyl-6-chloro-4-pyrimidinamine 61667-16-1 C11H10ClN3
4-[4-Fluoro-2-(phenylmethoxy)phenyl]-α-methyl-2,6-bis(1-methylethyl)-5-(1-propen-1-yl)-3-Pyridinemethanol 4-[4-Fluoro-2-(phenylmethoxy)phenyl]-α-methyl-2,6-bis(1-methylethyl)-5-(1-propen-1-yl)-3-Pyridinemethanol 503559-84-0 C29H34FNO2
2-Chloro-3-fluoro-5-nitropyridine 2-Chloro-3-fluoro-5-nitropyridine 1079179-12-6 C5H2ClFN2O2
6-Bromo-2-(pyridin-4-yl)pyridine 6-Bromo-2-(pyridin-4-yl)pyridine 106047-29-4 C10H7BrN2
2-bromo-3,5,6-trifluoropyridine 2-bromo-3,5,6-trifluoropyridine 1186194-66-0 C5HBrF3N
6-[4-(TRIFLUOROMETHOXY)PHENYL]NICOTINIC ACID 6-[4-(TRIFLUOROMETHOXY)PHENYL]NICOTINIC ACID 851266-74-5 C13H8F3NO3
Potassium (4-chloropyridin-3-yl)trifluoroborate Potassium (4-chloropyridin-3-yl)trifluoroborate 1245906-67-5 C5H3BClF3KN
4-amino-3,5,6-trichloropicolinamide 4-amino-3,5,6-trichloropicolinamide 14143-46-5 C6H4Cl3N3O
Furo[3,4-c]pyridine, 1,3-dihydro- (9CI) Furo[3,4-c]pyridine, 1,3-dihydro- (9CI) 126230-90-8 C7H7NO
Pyridine, 4-[(trimethylsilyl)ethynyl]- (9CI) Pyridine, 4-[(trimethylsilyl)ethynyl]- (9CI) 133810-35-2 C10H13NSi
Pyridine, 2-(1H-pyrazol-4-yl)- (9CI) Pyridine, 2-(1H-pyrazol-4-yl)- (9CI) 439106-75-9 C8H7N3
2-FLUORO-3-AMINO-5-BROMOPYRIDINE 2-FLUORO-3-AMINO-5-BROMOPYRIDINE C5H4BrFN2
2(1H)-Pyridinone, 5-acetyl- (9CI) 2(1H)-Pyridinone, 5-acetyl- (9CI) 1124-29-4 C7H7NO2
1-(5-bromo-2-chloropyrimidin-4-yl)piperidin-4-ol 1-(5-bromo-2-chloropyrimidin-4-yl)piperidin-4-ol 477593-22-9 C9H11BrClN3O
N-Ethyl-3-formylamino-4-methyl-6-hydroxy-2-pyridone N-Ethyl-3-formylamino-4-methyl-6-hydroxy-2-pyridone C9H12N2O3
3-Bromo-2-hydroxy-6-picoline 3-Bromo-2-hydroxy-6-picoline C6H6BrNO
2-Fluoro-5-chloropyridine-3-boronic acid 2-Fluoro-5-chloropyridine-3-boronic acid C5H4BClFNO2
1H-Pyrrolo[2,3-b]pyridine-3-methanamine,6-ethyl-N,N-dimethyl-(9CI) 1H-Pyrrolo[2,3-b]pyridine-3-methanamine,6-ethyl-N,N-dimethyl-(9CI) 533939-05-8 C12H17N3
4-Pyridinol,3-methoxy-(9CI) 4-Pyridinol,3-methoxy-(9CI) 62885-41-0 C6H7NO2
1H-Pyrrolo[2,3-c]pyridine-5-methanamine(9CI) 1H-Pyrrolo[2,3-c]pyridine-5-methanamine(9CI) 267876-19-7 C8H9N3
2-Pyridinol, 3,5-dinitro- 2-Pyridinol, 3,5-dinitro- 222548-10-9 C5H3N3O5
N-benzyl-2-chloro-N-ethylpyridine-4-carboxamide N-benzyl-2-chloro-N-ethylpyridine-4-carboxamide 1040022-07-8 C15H15ClN2O
N-benzyl-2-chloro-N-methylpyridine-4-carboxamide N-benzyl-2-chloro-N-methylpyridine-4-carboxamide 1019383-96-0 C14H13ClN2O
Pyridine,2-(1-methylethoxy)- Pyridine,2-(1-methylethoxy)- 16096-13-2 C8H11NO
3-Fluoro-4-(tributylstannyl)pyridine 3-Fluoro-4-(tributylstannyl)pyridine 259807-88-0 C17H30FNSn
ETHYL-(3-METHOXY-PYRIDIN-2-YL)-AMINE ETHYL-(3-METHOXY-PYRIDIN-2-YL)-AMINE C8H12N2O
3-(4-AMINO-5-BROMO-PYRIDIN-3-YL)-ACRYLIC ACID ETHYL ESTER 3-(4-AMINO-5-BROMO-PYRIDIN-3-YL)-ACRYLIC ACID ETHYL ESTER C10H11BrN2O2
2,3-Dihydro-2,7-dimethylfuro[2,3-c]pyridine 2,3-Dihydro-2,7-dimethylfuro[2,3-c]pyridine 69022-82-8 C9H11NO
Ethyl 3-nitropyridin-4-yl(cyclopropyl)carbamate Ethyl 3-nitropyridin-4-yl(cyclopropyl)carbamate 797032-05-4 C11H13N3O4
(4-Bromopyridin-2-yl)methyl acetate (4-Bromopyridin-2-yl)methyl acetate 192642-94-7 C8H8BrNO2
N-(1,2-Dimethylpropyl)-2-pyridinamine N-(1,2-Dimethylpropyl)-2-pyridinamine 111098-37-4 C10H16N2
1-benzyl-1,6-dihydro-pyrrolo[2,3-c]pyridin-7-one 1-benzyl-1,6-dihydro-pyrrolo[2,3-c]pyridin-7-one 60290-20-2 C14H12N2O
(E)-N,N-DiMethyl-N'-(3-Methylpyridin-2-yl)forMiMidaMide (E)-N,N-DiMethyl-N'-(3-Methylpyridin-2-yl)forMiMidaMide 36172-55-1 C9H13N3
3-Morpholin-4-yl-5,6-dihydro-1H-pyridin-2-one 3-Morpholin-4-yl-5,6-dihydro-1H-pyridin-2-one 545445-40-7 C9H14N2O2
2,6-diamino-3-cycno-4-methylpyridine 2,6-diamino-3-cycno-4-methylpyridine 38841-52-0 C7H8N4
4-AMino-2-(Methylthio)pyridine 4-AMino-2-(Methylthio)pyridine 59243-39-9 C6H8N2S
N-(4-(4,4,5,5-TetraMethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)acetaMide N-(4-(4,4,5,5-TetraMethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)acetaMide 1220220-21-2 C13H19BN2O3
Tubastatin A hydrochloride Tubastatin A hydrochloride 1310693-92-5 C20H22ClN3O2
3-chloro-2,6-difluoropyridin-4-aMine 3-chloro-2,6-difluoropyridin-4-aMine 405230-78-6 C5H3ClF2N2
(3-chloro-5-fluoropyridin-2-yl)MethanaMine (3-chloro-5-fluoropyridin-2-yl)MethanaMine 1211578-98-1 C6H6ClFN2
20265-37-6 20265-37-6 20265-37-6 C6H6N2O3
2-BROMO-PYRIDIN-3-YLAMINE HCL 2-BROMO-PYRIDIN-3-YLAMINE HCL 78607-34-8 C5H6BrClN2
3H-IMIDAZO[4,5-C]PYRIDINE 3H-IMIDAZO[4,5-C]PYRIDINE 170245-15-5 C6H5N3
4-PYRIDINECARBOXALDEHYDE N-OXIDE 4-PYRIDINECARBOXALDEHYDE N-OXIDE 7216-42-4 C6H5NO2
2-(5-chloropyridin-2-yl)acetic acid 2-(5-chloropyridin-2-yl)acetic acid 1000522-43-9 C7H6ClNO2
6-Bromo-2,4-dimethyl-3-iodopyridine 6-Bromo-2,4-dimethyl-3-iodopyridine C7H7BrIN
(2-phenylethyl)(pyridin-2-ylmethyl)amine (2-phenylethyl)(pyridin-2-ylmethyl)amine 418776-49-5 C14H16N2
(5-CYANOPYRIDIN-3-YL)-METHANOL (5-CYANOPYRIDIN-3-YL)-METHANOL 135124-71-9 C7H6N2O
Pyridine, 2-fluoro-5-iodo-4-methyl- Pyridine, 2-fluoro-5-iodo-4-methyl- C6H5FIN
(2-AMINO-4-PYRIDYL)BORONIC ACID (2-AMINO-4-PYRIDYL)BORONIC ACID 903513-62-2 C5H7BN2O2
5-BROMO-4-IODOPYRIDINE-3-CARBOXYLIC ACID 5-BROMO-4-IODOPYRIDINE-3-CARBOXYLIC ACID 491588-98-8 C6H3BrINO2
(6-amino-pyridin-3-ylmethyl)-carbamic acid tert-butyl ester (6-amino-pyridin-3-ylmethyl)-carbamic acid tert-butyl ester 400720-77-6 C11H17N3O2
2-Chloropyridine-3-sulfonyl  chloride 2-Chloropyridine-3-sulfonyl chloride 70682-09-6 C6H6ClNO2S
4-Bromopyridin-2(1H)-One 4-Bromopyridin-2(1H)-One 947407-84-3 C5H6BrNO
4,6-Dichloropyrido[3,2-d]pyrimidine 4,6-Dichloropyrido[3,2-d]pyrimidine 175358-02-8 C7H3Cl2N3
3-amino-4-bromo-2,6-dichloropyridine 3-amino-4-bromo-2,6-dichloropyridine 1121586-37-5 C5H3BrCl2N2
N-(1-(5-fluoropyridin-2-yl)vinyl)acetamide N-(1-(5-fluoropyridin-2-yl)vinyl)acetamide 905587-18-0 C9H9FN2O
3,5-difluoro-4-methoxypyridine 3,5-difluoro-4-methoxypyridine 1186195-24-3 C6H5F2NO
4-(5-Nitro-pyridin-2-yloxy)-piperidine-1-carboxylic acid tert-butyl ester 4-(5-Nitro-pyridin-2-yloxy)-piperidine-1-carboxylic acid tert-butyl ester 346665-40-5 C15H21N3O5
Ethyl 4-Ethoxy-2-oxo-1,2-dihydropyridine-3-carboxylate Ethyl 4-Ethoxy-2-oxo-1,2-dihydropyridine-3-carboxylate 1174046-84-4 C10H13NO4
3-Bromo-6-chloropicolinonitrile, 97% 3-Bromo-6-chloropicolinonitrile, 97% 1053659-39-4 C6H2BrClN2
tert-Butyl 4-(methylthio)-3-iodopyridin-2-ylcarbamate tert-Butyl 4-(methylthio)-3-iodopyridin-2-ylcarbamate 1211504-19-6 C11H15IN2O2S
52200-48-3 52200-48-3 52200-48-3
3-Chlor-2-(2-Chlor-5-AMino-Phenoxy)-5-(TrifluoroMethyl)-Pyridine 3-Chlor-2-(2-Chlor-5-AMino-Phenoxy)-5-(TrifluoroMethyl)-Pyridine 87170-48-7 C12H7Cl2F3N2O
2-broMopyridine-3-sulfonyl chloride 2-broMopyridine-3-sulfonyl chloride 1060811-59-7 C5H3BrClNO2S
3-chloro-4-iodo-6-fluoropyridine 3-chloro-4-iodo-6-fluoropyridine C5H2ClFIN
N-Benzyl-1-[6-(2,4-difluorophenyl)-2-pyridyl]MethanaMine N-Benzyl-1-[6-(2,4-difluorophenyl)-2-pyridyl]MethanaMine 887985-29-7 C19H16F2N2
2-chloro-3-nitro-6-hydroxypyridine 2-chloro-3-nitro-6-hydroxypyridine 198268-98-3 C5H3ClN2O3
1-(2-Methoxyethyl)-4-oxo-1,4-dihydropyrido[1,2-a]pyrrolo[2,3-d]pyriMidine-2-carboxylic acid Monohydrate, 96% 1-(2-Methoxyethyl)-4-oxo-1,4-dihydropyrido[1,2-a]pyrrolo[2,3-d]pyriMidine-2-carboxylic acid Monohydrate, 96% C14H15N3O5
N-HEXYLPYRIDINIUM TRIFLUOROMETHANESULFONATE N-HEXYLPYRIDINIUM TRIFLUOROMETHANESULFONATE 623167-81-7 C12H18F3NO3S
NICOTINAMIDE HYDROIODIDE NICOTINAMIDE HYDROIODIDE 3726-23-6 C6H7IN2O
6-METHYL-PYRIDINE-2,5-DIAMINE 6-METHYL-PYRIDINE-2,5-DIAMINE C6H9N3
2-ACETYLAMINO-3-BROMO-5-METHYLPYRIDINE& 2-ACETYLAMINO-3-BROMO-5-METHYLPYRIDINE& 142404-83-9 C8H9BrN2O
6-BROMOPYRIDINE-2-ETHYL FORMATE 6-BROMOPYRIDINE-2-ETHYL FORMATE
6-(1H-IMIDAZOL-1-YL)NICOTINIC ACID 6-(1H-IMIDAZOL-1-YL)NICOTINIC ACID 216955-75-8 C9H7N3O2
4-FLUORO-2-NITROPYRIDINE 4-FLUORO-2-NITROPYRIDINE 884495-09-4 C5H3FN2O2
4-(TERT-BUTYLDIMETHYLSILYLOXYMETHYL)PYRIDINE 4-(TERT-BUTYLDIMETHYLSILYLOXYMETHYL)PYRIDINE 117423-41-3 C12H21NOSi
5-TRIFLUOROMETHYL-PYRIDINE-2-CARBOXYLIC ACID METHYL ESTER 5-TRIFLUOROMETHYL-PYRIDINE-2-CARBOXYLIC ACID METHYL ESTER C8H6F3NO2
CHEMBRDG-BB 9070784 CHEMBRDG-BB 9070784 62402-19-1 C9H14N2O
2-Hydroxy-3-Pyridine Carboxylic acid 2-Hydroxy-3-Pyridine Carboxylic acid C6H5NO3
3-Bromo-2-mercapto-5-nitropyridine 3-Bromo-2-mercapto-5-nitropyridine 876489-83-7 C5H3BrN2O2S
2-Cyano-6-fluoropyridine 2-Cyano-6-fluoropyridine C6H3FN2
4-(DIMETHYLAMINO)PYRIDINIUM CHLOROCHROMA TE, 97% 4-(DIMETHYLAMINO)PYRIDINIUM CHLOROCHROMA TE, 97% 81121-61-1 C7H10N2.ClCrHO3
ETHYL 3,5-DICHLOROPYRIDINE-4-CARBOXYLA& ETHYL 3,5-DICHLOROPYRIDINE-4-CARBOXYLA& 773874-72-9 C7H5Cl2NO2
2-CYANO-5-CARBOXAMIDOPYRIDINE 2-CYANO-5-CARBOXAMIDOPYRIDINE 14178-45-1 C7H5N3O
N-OXIDE-2-METHYL-5-NITROPRIDINE N-OXIDE-2-METHYL-5-NITROPRIDINE
2-CYANOMETHYL-3-NITRO-6-METHOXY PYRIDINE 2-CYANOMETHYL-3-NITRO-6-METHOXY PYRIDINE 111795-99-4 C8H7N3O3
2,3,5,6-TETRACHLOROPYRIDINE-4-CARBOXALDEHYDE 2,3,5,6-TETRACHLOROPYRIDINE-4-CARBOXALDEHYDE 68054-26-2 C6HCl4NO
2,4-DICHLORO-6-METHYLNICOTINIC ACID 2,4-DICHLORO-6-METHYLNICOTINIC ACID 56022-07-2 C7H5Cl2NO2
3-Pyridinol,  4-methyl-2-nitro- 3-Pyridinol, 4-methyl-2-nitro- 15128-89-9 C6H6N2O3
HomePage | Member Companies | Advertising | Contact us | Previous WebSite | MSDS | CAS Index | CAS DataBase
Copyright © 2016 ChemicalBook All rights reserved.