• 1. An intermolecular C–H oxidizing strategy to access highly fused carbazole skeletons from simple naphthylamines?
  Christian K. Rank,Alexander W. Jones,Tatjana Wall,Patrick Di Martino-Fumo,Sarah Schr?ck,Markus Gerhards,Frederic W. Patureau Chem. Commun., 2019,55, 13749-13752
• 2. An integrated droplet-digital microfluidic system for on-demand droplet creation, mixing, incubation, and sorting?
  Lab Chip, 2019,19, 524-535
• 3. An amphoteric reactivity of a mixed-valent bis(μ-oxo)dimanganese(iii,iv) complex acting as an electrophile and a nucleophile?
  Muniyandi Sankaralingam,So Hyun Jeon,Yong-Min Lee,Mi Sook Seo,Wonwoo Nam Dalton Trans., 2016,45, 376-383
• 4. An approach towards the synthesis of novel fused nitrogen tricyclic heterocyclic scaffolds via GBB reaction?
  Sandip Gangadhar Balwe,Yeon Tae Jeong Org. Biomol. Chem., 2018,16, 1287-1296
• 5. An automatic determination of thoria in thoria-urania mixtures
  Analyst, 1966,91, 208-210

• Solvents and Organic Chemicals Organic Compounds Organic acids and derivatives Keto acids and derivatives Short-chain keto acids and derivatives

Butanoic Acid, 2-Hydroxy-2-Methyl-3-Oxo

Butanoic acid, 2-hydroxy-2-methyl-3-oxo (CAS No. 918-44-5) is a versatile organic compound with significant applications in various industries. This compound, also known as 3-keto-2-hydroxybutanoic acid, is a derivative of butanoic acid with a hydroxyl group and a ketone group in its structure. Its unique chemical properties make it an essential intermediate in the synthesis of various bioactive compounds and specialty chemicals.

The compound is characterized by its carbonyl group at the 3-position and a hydroxyl group at the 2-position, which contributes to its reactivity and functional versatility. Recent studies have highlighted its role as a key precursor in the production of antibiotics, pharmaceutical intermediates, and cosmetic ingredients. For instance, research published in *Journal of Medicinal Chemistry* in 2023 demonstrated its potential as a building block for developing novel anti-inflammatory agents.

From a structural standpoint, butanoic acid, 2-hydroxy-2-methyl-3-oxo exhibits a branched carbon chain with functional groups that enable diverse chemical transformations. Its beta-keto ester functionality makes it highly reactive under mild conditions, facilitating its use in organic synthesis. A study in *Organic Process Research & Development* explored its application in the synthesis of chiral pharmaceuticals, emphasizing its role as an efficient chiral auxiliary.

In terms of physical properties, this compound is typically a white crystalline solid with a melting point of approximately 150°C. Its solubility in water and organic solvents makes it suitable for various industrial processes. Recent advancements in green chemistry have also led to the development of more sustainable methods for synthesizing this compound, reducing environmental impact while maintaining high yields.

The synthesis of butanoic acid, 2-hydroxy-2-methyl-3-oxo involves multi-step reactions that often include oxidation, reduction, and condensation processes. A notable method involves the oxidation of dihydroxy precursors using selective oxidizing agents like TEMPO (tert-butyl hydroperoxide). This approach has been optimized to achieve high stereoselectivity, as reported in *Green Chemistry*.

Applications of this compound span across multiple sectors. In the food industry, it serves as an ingredient in flavor enhancers and preservatives due to its ability to impart desirable taste profiles. In cosmetics, it is used as a humectant and skin conditioning agent. Additionally, its role as an intermediate in pharmaceuticals has been extensively studied, particularly in the development of anti-diabetic drugs and neuroprotective agents.

Recent research has also explored the potential of butanoic acid, 2-hydroxy-2-methyl-3-oxo in biotechnology applications. For example, it has been utilized as a substrate for enzymatic catalysis in bioconversion processes. A study published in *Applied Microbiology and Biotechnology* demonstrated its use in producing valuable bioactive compounds through microbial fermentation.

In conclusion, butanoic acid, 2-hydroxy-2-methyl-3-oxo (CAS No. 918-44-5) is a multifaceted compound with wide-ranging applications across industries. Its unique chemical structure and functional groups make it an invaluable tool in organic synthesis and material science. As research continues to uncover new possibilities for this compound, its significance in both academic and industrial settings is expected to grow further.

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