2-氨基-3-硝基吡啶是一种用于生物化学研究的试剂,可以作为生物材料或有机化合物,在生命科学研究中发挥重要作用。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3-硝基吡啶 | 3-nitropyridine | 2530-26-9 | C5H4N2O2 | 124.099 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2,6-二氨基-3-硝基吡啶 | 3-nitropyridine-2,6-diamine | 3346-63-2 | C5H6N4O2 | 154.128 |
N-甲基-3-硝基-2-氨基吡啶 | 2-(methylamino)-3-nitropyridine | 4093-88-3 | C6H7N3O2 | 153.14 |
3-硝基-2-吡啶肼 | 2-Hydrazino-3-nitropyridine | 15367-16-5 | C5H6N4O2 | 154.128 |
2-氨基-5-溴-3-硝基吡啶 | 5-bromo-3-nitro-pyridin-2-ylamine | 6945-68-2 | C5H4BrN3O2 | 218.01 |
2-氨基-5-碘-3-硝基吡啶 | 5-Iodo-3-nitro-2-aminopyridine | 25391-57-5 | C5H4IN3O2 | 265.01 |
6-氨基-5-硝基-2(1H)-吡啶酮 | 6-amino-5-nitro-1H-pyridin-2-one | 211555-30-5 | C5H5N3O3 | 155.113 |
3,5-二硝基-2-氨基吡啶 | 3,5-dinitropyridin-2-amine | 3073-30-1 | C5H4N4O4 | 184.111 |
—— | 2-amino-6-(N-methylamino)-3-nitropyridine | 144435-15-4 | C6H8N4O2 | 168.155 |
2-[(二甲基-lambda4-硫代)氨基]-3-硝基吡啶 | 2-dimethylsulfilimino-3-nitropyridine | 134251-86-8 | C7H9N3O2S | 199.233 |
—— | 3-nitro-N-(2-methyl-1-propenyl)-2-pyridinamine | 424799-90-6 | C9H11N3O2 | 193.205 |
—— | 3-((3-nitropyridin-2-yl)amino)propanenitrile | 223377-06-8 | C8H8N4O2 | 192.177 |
—— | 2-nitramino-3-nitropyridine | 6936-39-6 | C5H4N4O4 | 184.111 |
(3-硝基-吡啶-2-基氨基)-乙酸 | N-(3-nitro-2-pyridyl)-α-glycine | 118807-77-5 | C7H7N3O4 | 197.15 |
N-(3-硝基-2-吡啶)-乙酰胺 | N-(3-nitropyridin-2-yl)acetamide | 79371-44-1 | C7H7N3O3 | 181.151 |
—— | 3-nitro-2-phenylaminopyridine | 34949-41-2 | C11H9N3O2 | 215.211 |
2-(3-硝基吡啶-2-氨基)乙酸甲酯 | methyl N-(3-nitropyridin-2-yl)glycinate | 57461-53-7 | C8H9N3O4 | 211.177 |
—— | (4-bromobenzyl)-(3-nitropyridin-2-yl)-amine | 661485-53-6 | C12H10BrN3O2 | 308.134 |
6-氨基-3-碘-5-硝基-2(1H)-吡啶酮 | 6-amino-3-iodo-5-nitro-1H-pyridin-2-one | 642460-96-6 | C5H4IN3O3 | 281.01 |
—— | N-(3-nitro-2-pyridyl)-α-alanine | 7594-53-8 | C8H9N3O4 | 211.177 |
—— | N-(3-nitropyridin-2-yl)hexanamide | 1236430-18-4 | C11H15N3O3 | 237.258 |
Halodimethylsulfonium halide 1, which is readily formed in situ from hydrohaloic acid and DMSO, is a good nucleophilic halide. This activated nucleophilic halide rapidly converts aryldiazonium salt prepared in situ by the same hydrohaloic acid and nitrite ion to aryl chlorides, bromides, or iodides in good yield. The combined action of nitrite ion and hydrohaloic acid in DMSO is required for the direct transformation of aromatic amines, which results in the production of aryl halides within 1 h. Substituted compounds with electron-donating or -withdrawing groups or sterically hindered aromatic amines are also smoothly transformed to the corresponding aromatic halides. The only observed by-product is the deaminated arene (usually <7%). The isolated aryldiazonium salts can also be converted to the corresponding aryl halides using 1. The present method offers a facile, one-step procedure for transforming aminoarenes to haloarenes and lacks the environmental pollutants that usually accompany the Sandmeyer reaction using copper halides. Key words: aminoarenes, haloarenes, halodimethylsulfonium halide, halogenation, amination.
An efficient methodology for diversified preparation of benzimidazole, quinazolin-4(3