Cas no 849052-26-2 (Cyclobutylboronic acid)

Cyclobutylboronic acid (C?H?BO?) is a boronic acid derivative featuring a cyclobutyl group, commonly utilized as a versatile intermediate in organic synthesis and cross-coupling reactions, such as Suzuki-Miyaura couplings. Its compact cyclic structure enhances steric control, making it valuable for constructing complex molecular architectures. The compound exhibits good stability under standard conditions and is compatible with a range of reaction conditions, offering reliable reactivity for C-C bond formation. Cyclobutylboronic acid is particularly useful in pharmaceutical and agrochemical research, where its incorporation can modulate the physicochemical properties of target molecules. Proper handling under inert atmospheres is recommended to maintain its integrity.
Cyclobutylboronic acid structure
Cyclobutylboronic acid structure
Product Name:Cyclobutylboronic acid
CAS No:849052-26-2
MF:C4H9BO2
MW:99.9240615367889
MDL:MFCD06798108
CID:716664
PubChem ID:16217845
Update Time:2025-06-13

Cyclobutylboronic acid Chemical and Physical Properties

Names and Identifiers

    • Cyclobutylboronic acid
    • Boronic acid,B-cyclobutyl-
    • Cyclobutaneboronic acid
    • cyclobutyl boronic acid
    • MIUALDDWOKMYDA-UHFFFAOYSA-N
    • Cyclobutylboronic acid, >=95.0%
    • BCP05474
    • BBL103022
    • STL556831
    • TRA0016408
    • AB29820
    • AB0030128
    • ST24030272
    • X2316
    • A840999
    • B-Cyclobutylboronic acid (ACI)
    • Boronic acid, cyclobutyl- (9CI)
    • GS-5855
    • XJY
    • MFCD06798108
    • EN300-145329
    • 849052-26-2
    • AKOS015894300
    • DTXSID40584591
    • CS-W001218
    • DA-17732
    • CYCLOBUTYLBORONICACID
    • MDL: MFCD06798108
    • Inchi: 1S/C4H9BO2/c6-5(7)4-2-1-3-4/h4,6-7H,1-3H2
    • InChI Key: MIUALDDWOKMYDA-UHFFFAOYSA-N
    • SMILES: OB(C1CCC1)O

Computed Properties

  • Exact Mass: 100.07000
  • Monoisotopic Mass: 100.0695597g/mol
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 2
  • Hydrogen Bond Acceptor Count: 2
  • Heavy Atom Count: 7
  • Rotatable Bond Count: 1
  • Complexity: 60.7
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Topological Polar Surface Area: 40.5

Experimental Properties

  • Color/Form: No data available
  • Density: 1.06
  • Melting Point: 118-123?°C (lit.)
  • Boiling Point: 218.7℃ at 760 mmHg
  • Flash Point: 86℃
  • Refractive Index: 1.446
  • PSA: 40.46000
  • LogP: 0.01330

Cyclobutylboronic acid Customs Data

  • HS CODE:2931900090
  • Customs Data:

    China Customs Code:

    2931900090

    Overview:

    2931900090. Other organic-Inorganic compound. VAT:17.0%. Tax refund rate:13.0%. Regulatory conditions:AB(Customs clearance form for Inbound Goods,Customs clearance form for outbound goods). MFN tariff:6.5%. general tariff:30.0%

    Summary:

    2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Cyclobutylboronic acid Pricemore >>

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Cyclobutylboronic acid Production Method

Production Method 1

Reaction Conditions
1.1 Solvents: Water ;  1 - 2 h, rt
Reference
Unlocking the Accessibility of Alkyl Radicals from Boronic Acids through Solvent-Assisted Organophotoredox Activation
Ranjan, Prabhat; Pillitteri, Serena ; Coppola, Guglielmo; Oliva, Monica; Van der Eycken, Erik V.; et al, ACS Catalysis, 2021, 11(17), 10862-10870

Production Method 2

Reaction Conditions
1.1 Reagents: Boron trifluoride etherate Solvents: 1,4-Dioxane ;  15 min, rt; 20 min, rt
Reference
Axial shielding of Pd(II) complexes enables perfect stereoretention in Suzuki-Miyaura cross-coupling of Csp3 boronic acids
Lehmann, Jonathan W.; Crouch, Ian T.; Blair, Daniel J. ; Trobe, Melanie; Wang, Pulin; et al, Nature Communications, 2019, 10(1), 1-9

Production Method 3

Reaction Conditions
1.1 Reagents: Silica Solvents: Water ;  1 - 2 h, rt
Reference
Alkylboronic acids as alkylating agents: photoredox-catalyzed alkylation reactions assisted by K3PO4
Yue, Fuyang; Ma, Henan; Song, Hongjian; Liu, Yuxiu; Dong, Jianyang; et al, Chemical Science, 2022, 13(45), 13466-13474

Production Method 4

Reaction Conditions
1.1 Reagents: (Trifluoromethyl)benzene ,  Cesium carbonate Solvents: Tetrahydrofuran ,  Water ;  55 °C; 0 °C; 6 - 168 h, 55 °C
Reference
Organotrifluoroborate Hydrolysis: Boronic Acid Release Mechanism and an Acid-Base Paradox in Cross-Coupling
Lennox, Alastair J. J.; Lloyd-Jones, Guy C., Journal of the American Chemical Society, 2012, 134(17), 7431-7441

Cyclobutylboronic acid Raw materials

Cyclobutylboronic acid Preparation Products

Additional information on Cyclobutylboronic acid

Comprehensive Guide to Cyclobutylboronic Acid (CAS No. 849052-26-2): Properties, Applications, and Industry Insights

Cyclobutylboronic acid (CAS No. 849052-26-2) is a specialized boronic acid derivative widely recognized for its role in organic synthesis and pharmaceutical research. This compound, featuring a cyclobutyl group attached to a boronic acid functional group, is a valuable building block in Suzuki-Miyaura cross-coupling reactions, a cornerstone of modern medicinal chemistry. Its unique structure enables the formation of carbon-carbon bonds, making it indispensable in the development of novel therapeutics and agrochemicals.

The growing demand for cyclobutyl-containing compounds in drug discovery has positioned Cyclobutylboronic acid as a highly sought-after reagent. Researchers frequently search for "CAS 849052-26-2 suppliers," "Cyclobutylboronic acid solubility," or "boronic acid stability"—reflecting key concerns in handling and application. Recent trends also highlight interest in "green chemistry alternatives" for boronic acid synthesis, aligning with the industry's shift toward sustainable practices.

From a chemical perspective, Cyclobutylboronic acid exhibits notable stereoelectronic properties due to its strained four-membered ring. This feature enhances its reactivity in transition-metal-catalyzed reactions, particularly in constructing cyclobutane scaffolds—a structural motif gaining traction in protease inhibitor design. Analytical data reveals its typical boronic acid IR absorption at ~1340 cm-1 (B-O stretch) and ~3200 cm-1 (O-H stretch), critical for quality verification.

Storage and handling of CAS No. 849052-26-2 require attention to moisture sensitivity, a common query among users. Best practices recommend anhydrous conditions at 2–8°C under inert gas, with MSDS-compliant packaging to ensure longevity. The compound’s crystalline form (typically white to off-white powder) facilitates accurate weighing for stoichiometric applications, though some users inquire about "Cyclobutylboronic acid solution preparation" for high-throughput screening.

Innovative applications continue to emerge, particularly in PET radiopharmaceuticals where boronic acid esters serve as 18F-labeling precursors. This connects to trending searches like "boronic acids in imaging agents" and "cyclobutyl metabolic stability." Furthermore, computational studies exploring "cyclobutylboronate DFT calculations" demonstrate its utility in rational drug design, addressing another hot topic in computational chemistry forums.

Quality benchmarks for 849052-26-2 emphasize HPLC purity (>97%) and low heavy metal content (<10 ppm), parameters frequently verified via "Cyclobutylboronic acid NMR characterization" (δ11B ~30 ppm in DMSO-d6). Suppliers often provide "technical data sheets" detailing batch-to-batch consistency—a critical factor for GMP-compliant applications. Recent patents also highlight derivatization techniques to enhance its hydrolytic stability, addressing a key industry challenge.

As the pharmaceutical sector explores sp3-rich architectures, Cyclobutylboronic acid gains prominence in fragment-based drug discovery. Its vector geometry enables precise molecular editing, aligning with searches for "three-dimensional fragments" and "Fsp3 optimization." The compound’s logP value (~1.2) and hydrogen bond donor capacity further contribute to its utility in optimizing lipophilic efficiency (LipE).

Environmental considerations drive interest in "boronic acid waste treatment" protocols, with recommended neutralization using aqueous hydrogen peroxide. This reflects broader ESG (Environmental, Social, and Governance) trends influencing chemical procurement. Meanwhile, advancements in continuous flow chemistry demonstrate improved safety profiles for Cyclobutylboronic acid-mediated reactions, another area garnering research attention.

In summary, Cyclobutylboronic acid (CAS 849052-26-2) represents a versatile synthetic intermediate at the intersection of methodology development and applied research. Its evolving applications—from bioconjugation chemistry to materials science—ensure sustained relevance, while quality control innovations address user concerns about reproducibility and supply chain reliability in fine chemical markets.

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