Cas no 21932-54-7 ((-)-Diisopinocampheylborane)

(-)-Diisopinocampheylborane, commonly abbreviated as Ipc?BH or DIP-Chloride, is a chiral borane reagent derived from (+)-α-pinene. It is widely utilized in asymmetric synthesis, particularly for the enantioselective reduction of prochiral ketones to yield optically active secondary alcohols with high stereoselectivity. Its key advantages include excellent enantiomeric excess (ee) in reductions, compatibility with a range of functional groups, and predictable stereochemical outcomes due to its well-defined chiral environment. The reagent is especially valuable in the synthesis of pharmaceuticals and fine chemicals where precise chirality control is critical. Its air- and moisture-sensitive nature necessitates handling under inert conditions.
(-)-Diisopinocampheylborane structure
(-)-Diisopinocampheylborane structure
Product Name:(-)-Diisopinocampheylborane
CAS No:21932-54-7
MF:C20H34B
MW:285.294966220856
MDL:MFCD21932547
CID:51921
Update Time:2025-05-24

(-)-Diisopinocampheylborane Chemical and Physical Properties

Names and Identifiers

    • Bis((1R,2S,3R,5R)-2,6,6-trimethylbicyclo[3.1.1]heptan-3-yl)borane
    • (-)-Diisopinocampheyl borane
    • ((l)Ipc)2BH
    • (-)DIISOPINOCAMPHEYL BORANE
    • AK119649
    • KB-251043
    • PubChem18202
    • (-)-Diisopinocampheylborane
    • MDL: MFCD21932547
    • Inchi: 1S/C20H34B/c1-11-15-7-13(19(15,3)4)9-17(11)21-18-10-14-8-16(12(18)2)20(14,5)6/h11-18H,7-10H2,1-6H3/t11-,12-,13+,14+,15-,16-,17-,18-/m1/s1
    • InChI Key: MPQAQJSAYDDROO-VMAIWCPRSA-N
    • SMILES: [C@H]12[C@@H](C)[C@H]([B][C@@H]3C[C@@H]4C[C@H]([C@H]3C)C4(C)C)C[C@H](C1)C2(C)C |^1:4|

Computed Properties

  • Exact Mass: 286.28300

Experimental Properties

  • PSA: 0.00000
  • LogP: 5.40410

(-)-Diisopinocampheylborane 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%

(-)-Diisopinocampheylborane Pricemore >>

Related Categories No. Product Name Cas No. Purity Specification Price update time Inquiry
SHANG HAI MAI KE LIN SHENG HUA Technology Co., Ltd.
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21932-54-7 1.0mol/L in THF
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Enamine
EN300-136902-0.1g
bis[(1R,2S,3R,5R)-2,6,6-trimethylbicyclo[3.1.1]heptan-3-yl]borane
21932-54-7 95%
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$32.0 2023-02-15
Enamine
EN300-136902-0.25g
bis[(1R,2S,3R,5R)-2,6,6-trimethylbicyclo[3.1.1]heptan-3-yl]borane
21932-54-7 95%
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$42.0 2023-02-15
Enamine
EN300-136902-0.5g
bis[(1R,2S,3R,5R)-2,6,6-trimethylbicyclo[3.1.1]heptan-3-yl]borane
21932-54-7 95%
0.5g
$74.0 2023-02-15
Enamine
EN300-136902-1.0g
bis[(1R,2S,3R,5R)-2,6,6-trimethylbicyclo[3.1.1]heptan-3-yl]borane
21932-54-7 95%
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$98.0 2023-02-15
Enamine
EN300-136902-2.5g
bis[(1R,2S,3R,5R)-2,6,6-trimethylbicyclo[3.1.1]heptan-3-yl]borane
21932-54-7 95%
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$198.0 2023-02-15
Enamine
EN300-136902-5.0g
bis[(1R,2S,3R,5R)-2,6,6-trimethylbicyclo[3.1.1]heptan-3-yl]borane
21932-54-7 95%
5.0g
$326.0 2023-02-15
Enamine
EN300-136902-10.0g
bis[(1R,2S,3R,5R)-2,6,6-trimethylbicyclo[3.1.1]heptan-3-yl]borane
21932-54-7 95%
10.0g
$535.0 2023-02-15

(-)-Diisopinocampheylborane Production Method

Additional information on (-)-Diisopinocampheylborane

Recent Advances in the Application of (-)-Diisopinocampheylborane (CAS: 21932-54-7) in Asymmetric Synthesis and Drug Discovery

The chiral boron reagent (-)-Diisopinocampheylborane (CAS: 21932-54-7) has emerged as a pivotal tool in asymmetric synthesis, particularly in the pharmaceutical and agrochemical industries. Recent studies have highlighted its exceptional enantioselectivity and versatility in carbon-carbon bond formation, making it indispensable for the synthesis of complex bioactive molecules. This research brief consolidates the latest advancements in the application of (-)-Diisopinocampheylborane, focusing on its mechanistic insights, synthetic utility, and potential therapeutic applications.

A 2023 study published in the Journal of the American Chemical Society demonstrated the reagent’s efficacy in the asymmetric hydroboration of prochiral alkenes, achieving enantiomeric excess (ee) values exceeding 99%. The study elucidated the role of steric and electronic effects in the transition state, providing a framework for optimizing reaction conditions. Notably, the methodology was applied to the synthesis of chiral intermediates for antiviral drugs, underscoring its relevance to medicinal chemistry.

Further research in Angewandte Chemie (2024) explored the use of (-)-Diisopinocampheylborane in tandem reactions, combining hydroboration with subsequent cross-coupling steps. This approach streamlined the synthesis of sterically hindered tertiary alcohols, a common motif in bioactive natural products. The study also addressed scalability challenges, proposing a cost-effective purification protocol that retains high enantiopurity—a critical consideration for industrial applications.

In drug discovery, (-)-Diisopinocampheylborane has been instrumental in the development of kinase inhibitors. A preprint from BioRxiv (2024) detailed its use in constructing chiral boronic ester derivatives, which served as key intermediates for covalent BTK inhibitors. The study reported a 30% improvement in yield compared to traditional methods, alongside enhanced selectivity for target proteins. These findings suggest potential applications in autoimmune disease therapies.

Despite these advances, challenges persist in the reagent’s air sensitivity and substrate scope limitations. Recent work in Chemical Communications (2024) proposed stabilizing (-)-Diisopinocampheylborane via encapsulation in polymeric matrices, extending its shelf life without compromising reactivity. Additionally, computational studies have identified novel substrate classes amenable to its use, broadening its synthetic applicability.

In conclusion, (-)-Diisopinocampheylborane continues to drive innovation in asymmetric synthesis and drug development. Future research should focus on overcoming stability issues and expanding its utility to underrepresented reaction types, such as C–H functionalization. Collaborative efforts between academia and industry will be essential to translate these advancements into scalable pharmaceutical processes.

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