CAS: 110860-92-9; 5,6-Dichloropyridin-3-Ol

相似化合物

1196157-47-7 41288-96-4 52764-11-1

上下游产品

CAS号110861-18-2 5-acetoxy-2,3-d... | CAS号98121-41-6 5, 6-二氯-3-氨基吡啶 | CAS号22353-40-8 5-硝基-2,3-二氯吡啶 | CAS号5418-51-9 2-羟基-5-硝基吡啶 | CAS号22353-38-4 5-硝基-2-羟基-3-氯吡啶 | CAS号74115-12-1 5-氯-3-羟基吡啶

2-羟基-5-硝基吡啶置于喹啉,盐酸,氢氧化钾,Tetrafluoroboric Acid,Potassium Chlorate,铁粉,溶剂黄146,Sodium Nitrite,三氯氧磷体系中,用 水 用作溶剂,化学反应 6.75H,反应生成2,3-二氯-5-羟基吡啶
参考文献:Chemistry Of 3-Hydroxypyridine Part 2: Synthesis Of 5,6-Dihalo-3-Hydroxypyridines
标题:Chemistry Of 3-Hydroxypyridine Part 2: Synthesis Of 5,6-Dihalo-3-Hydroxypyridines
摘要:本文介绍了从市售的 2-Hydroxy-5-Nitropyridine 开始,多步骤合成迄今未知的 5,6-二卤-3-羟基吡啶的方法.此外,还探讨了廉价的 2-氨基甲基呋喃(糠胺)在新颖的两步法中制备标题化合物的适用性.
Doi:10.1055/s-1990-26919

专利信息

专利号:US-4756739-A
优先权日:1985-12-21
标题 :Pyridine derivatives and the N-oxides thereof, and the use thereof as intermediates for the synthesis of plant protecting agents
发明人：FUSS ANDREAS; KOCH VOLKER
权利人:HOECHST AG
摘要:The compounds of the formula I (I) in which A denotes N or N->O, Z denotes O or NH, R denotes H, (halo)alkyl, (halo)alkenyl, (halo)alkynyl or alkoxycarbonyl, R1 denotes hydrogen, halogen, amino, -NHOH, hydroxyl, (substituted) phenylazo or a radical of the formulae Y=C=N-, Y1Y2C=N-, Y3NH- or K denotes 0 or 1, and m and n, independently of one another, denote a number from 1 to 4, with the proviso that, when Z-R denotes OH or NH2, (R1)n denotes at least one radical of the formula or represents two radicals, in the 5 or 6 position of the heterocyclic ring, which, in the 5 position, denote halogen and, in the 6 position, denote a radical of the group comprising halogen, amino, hydroxyl or phenylazo, which may be substituted as specified above, are valuable intermediates in the synthesis of plant protection agents.

专利号:CN-101781245-A
优先权日:2009-06-26
标题 :A new method for the synthesis of substituted pyridine-3-carboxylic acids and analogues

专利号:US-9751895-B2
优先权日:2015-09-24
标 题:N-[2-(2-amino-6,6-disubstituted-4,4a,5,6-tetrahydropyrano[3,4-d][1,3]thiazin-8a(8H)-yl)-1,3-thiazol-4-yl]amides
发明人：BRODNEY MICHAEL AARON; BUTLER CHRISTOPHER RYAN; ZHANG LEI; O'NEILL BRIAN THOMAS; VERHOEST PATRICK ROBERT; MIKOCHIK PETER JUSTIN; MURRAY JOHN CHARLES; HOU XINJUN
权利人:PFIZER
摘要:The present invention is directed to compounds, tautomers and pharmaceutically acceptable salts of the compounds which are disclosed, wherein the compounds have the structure of Formula I, n nand the variables R 1 , R 2 and R 3 are as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.

专利号:US-9611264-B1
优先权日:2015-09-24
标 题:N-[2-(3-amino-2,5-dimethyl-1,1-dioxido-5,6-dihydro-2H-1,2,4-thiadiazin-5-yl)-1,3-thiazol-4-yl] amides
发明人：BRODNEY MICHAEL AARON; BUTLER CHRISTOPHER RYAN; ZHANG LEI; O'NEILL BRIAN THOMAS; VERHOEST PATRICK ROBERT; SALOMON FERRER ROMELIA DEL CARMEN
权利人:PFIZER
摘要:The present invention is directed to compounds, tautomers and pharmaceutically acceptable salts of the compounds which are disclosed, wherein the compounds have the structure of Formula I, n n n n n n n n n n n n wherein the variables R 1 , R 2 and R 3 are as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.