琼斯试剂是三氧化铬在硫酸水溶液中的溶液。使用丙酮作为反应溶剂，该试剂通常分别用于将伯醇和仲醇氧化成羧酸和酮。氧化速度很快，且放热。该试剂耐受各种功能，例如不饱和键，其很少被氧化。有关铬基试剂的全面综述，请参阅 Tojo 和 Fernández 的“将醇氧化成醛和酮”，Springer Berlin，2006，1-97。 应用 琼斯试剂可用于：通过催化剂量的四氧化锇将各种烯烃氧化裂解成羧酸和酮通过取代萘酚的氧化脱氢二聚反应制备对称联萘酚。通过 2-（4-羟基-丁烯-1-炔基）苯甲醛合成酰基萘酚和取代异香豆素。 Jones reagent is a solution of chromium trioxide in aqueous sulfuric acid.Using acetone as a reaction solvent, the reagent is usually used for the oxidation of primary and secondary alcohols to carboxylic acids and ketones, respectively.The oxidation is very rapid and exothermic.The reagent tolerates a variety of functionalities, such as, for example, unsaturated bonds, which are rarely oxidized.For a comprehensive review of chromium-based reagents, see "Oxidation of Alcohols to Aldehydes and Ketones" by Tojo and Fernández, Springer Berlin, 2006, 1-97.Jones reagent can be used:In the oxidative cleavage of various alkenes into carboxylic acids and ketones using a catalytic amount of osmium tetroxide.To prepare symmetrical binaphthols by oxidative dehydrodimerization of substituted naphthols.To synthesize acyl-naphthols and substituted isocoumarins from 2-(4-hydroxy-but-1-ynyl)benzaldehydes.
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Jones reagent
Dangerous GoodsCAS number：65272-70-0 molecular formula：CrH2O7S
overview
compound introduction
Specs
| Chinese alias | 三氧化铬在硫酸中的溶液 | 硫酸 - 三氧化铬混合物 | ||
| English alias | Chromium trioxide solution in sulfuric acid, Jone′s reagent, Sulfuric acid-chromium trioxide mixture | ||
| CAS number | 65272-70-0 | molecular formula | CrH2O7S |
| molecular weight | 198.08 g/mol | Exact mass | 2 M CrO3 in aqueous |
| PSA | - | logp | - |
numbering system
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physicochemical properties
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Safety information
pictogram：
GHS06 , GHS08 , GHS09 , GHS05 , GHS03
Signal word：
Danger
Hazard Statement：
H335: 可能引起呼吸道刺激 H301: 吞咽会中毒 H314: 造成严重的皮肤灼伤和眼睛损伤 H317: 可能引起皮肤过敏反应 H334: 吸入可能引起过敏或哮喘病症状或呼吸困难 H312: 皮肤接触有害 H410: 对水生生物有剧毒并具有长期持续影响 H330: 吸入致命 H372: 通过长时间或反复暴露对器官造成损害 H340: 可能导致遗传缺陷 H350: 可能导致癌症 H290: 可能腐蚀金属 H361f: 怀疑破坏生育力 H271: 可能引起火灾或爆炸； 强氧化剂
Statement of Preventive Measures：
P305+P351+P338: 如进入眼睛：用水小心冲洗几分钟。如戴隐形眼镜并可方便地取出，取出隐形眼镜。继续冲洗。 P273: 避免释放到环境中。 P280: 戴防护手套/穿防护服/戴防护眼罩/戴防护面具。 P210: 远离热源，热表面，火花，明火和其他点火源。 - 禁止抽烟。 P303+P361+P353: 如皮肤（或头发）沾染：立即脱掉所有沾染的衣服。用水清洗皮肤/淋浴。
UN Number：
3098
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MSDS
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65272-70-0 | Jones reagent.pdf
