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(R,R)-(+)-Hydrobenzoin is a chiral 1,2-diol that serves as a versatile compound in the field of organic chemistry. It is characterized by its unique stereochemistry, which makes it a valuable chiral reagent, building block, ligand, or auxiliary in asymmetric synthesis. (R,R)-(+)-HYDROBENZOIN plays a crucial role in the development of complex organic molecules and has found applications in various industries due to its ability to influence the stereoselectivity of chemical reactions.

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  • 52340-78-0 Structure
  • Basic information

    1. Product Name: (R,R)-(+)-HYDROBENZOIN
    2. Synonyms: (1R,2R)-(+)-HYDROBENZOIN;(1R,2R)-(+)-1,2-DIPHENYL-1,2-ETHANEDIOL;(R,R)-(+)-HYDROBENZOIN;(R,R)-(+)-1,2-DIPHENYL-1,2-ETHANEDIOL;(R,R)-1,2-DIPHENYL-1,2-ETHANEDIOL;(R,R)-(+)-1,2-DIPHENYLETHANEDIOL;(R,R)-1,2-DIPHENYL-ETHYLENE GLYCOL;(R,R)-(+)-HYDROBENZOIN, 99% (99% EE/HPL&
    3. CAS NO:52340-78-0
    4. Molecular Formula: C14H14O2
    5. Molecular Weight: 214.26
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 52340-78-0.mol
  • Chemical Properties

    1. Melting Point: 146-149 °C(lit.)
    2. Boiling Point: 314.4°C (rough estimate)
    3. Flash Point: 179.8 °C
    4. Appearance: White to beige or light brown/Crystalline Powder or Crystals
    5. Density: 1.0781 (rough estimate)
    6. Vapor Pressure: 3.18E-06mmHg at 25°C
    7. Refractive Index: 95 ° (C=1, CHCl3)
    8. Storage Temp.: 2-8°C
    9. Solubility: N/A
    10. PKA: 13.38±0.20(Predicted)
    11. Merck: 14,4777
    12. BRN: 2050815
    13. CAS DataBase Reference: (R,R)-(+)-HYDROBENZOIN(CAS DataBase Reference)
    14. NIST Chemistry Reference: (R,R)-(+)-HYDROBENZOIN(52340-78-0)
    15. EPA Substance Registry System: (R,R)-(+)-HYDROBENZOIN(52340-78-0)
  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: 22-24/25
    4. WGK Germany: 3
    5. RTECS:
    6. F: 10
    7. HazardClass: N/A
    8. PackingGroup: N/A
    9. Hazardous Substances Data: 52340-78-0(Hazardous Substances Data)

52340-78-0 Usage

Uses

Used in Pharmaceutical Industry:
(R,R)-(+)-Hydrobenzoin is used as a chiral reagent for the multi-step synthesis of cyclopentitols and aminocyclopentitols from cyclopentene. These synthesized compounds have potential applications in the development of pharmaceuticals, particularly those targeting specific biological receptors or enzymes.
Used in Chemical Synthesis:
(R,R)-(+)-Hydrobenzoin is used as a ligand for the asymmetric addition of diethylzinc to aldehydes in the presence or absence of titanium tetra-isopropoxide. This reaction leads to the formation of (R)or (S)-form of the corresponding secondary alcohol, respectively. The ability to control the stereochemistry of the product is essential in the synthesis of enantiomerically pure compounds, which are often required in the pharmaceutical and agrochemical industries.
Used in Catalyst Development:
As a chiral ligand, (R,R)-(+)-Hydrobenzoin can be employed in the development of catalysts for various asymmetric reactions. These catalysts are crucial in the production of enantiomerically pure compounds, which are essential in the pharmaceutical, agrochemical, and fragrance industries. The use of (R,R)-(+)-Hydrobenzoin in catalyst development can lead to more efficient and selective synthetic processes, ultimately reducing the cost and environmental impact of chemical production.
Used in Research and Development:
(R,R)-(+)-Hydrobenzoin is also used as a building block and auxiliary in the research and development of new compounds and materials. Its unique stereochemistry allows researchers to explore novel synthetic routes and develop innovative applications in various fields, including materials science, pharmaceuticals, and agrochemicals.

Check Digit Verification of cas no

The CAS Registry Mumber 52340-78-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,3,4 and 0 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 52340-78:
(7*5)+(6*2)+(5*3)+(4*4)+(3*0)+(2*7)+(1*8)=100
100 % 10 = 0
So 52340-78-0 is a valid CAS Registry Number.
InChI:InChI=1/C14H14O2/c15-13(11-7-3-1-4-8-11)14(16)12-9-5-2-6-10-12/h1-10,13-16H/t13-,14-/m1/s1

52340-78-0 Well-known Company Product Price

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  • Aldrich

  • (256277)  (R,R)-(+)-Hydrobenzoin  99%, optical purity ee: 99% (HPLC)

  • 52340-78-0

  • 256277-5G

  • 685.62CNY

  • Detail
  • Aldrich

  • (256277)  (R,R)-(+)-Hydrobenzoin  99%, optical purity ee: 99% (HPLC)

  • 52340-78-0

  • 256277-25G

  • 2,520.18CNY

  • Detail

52340-78-0SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name (R,R)-(+)-1,2-Diphenyl-1,2-ethanediol

1.2 Other means of identification

Product number -
Other names (1R,2R)-1,2-diphenylethane-1,2-diol

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:52340-78-0 SDS

52340-78-0Relevant articles and documents

In vitro metabolism of oprozomib, an oral proteasome inhibitor: Role of epoxide hydrolases and cytochrome P450ss

Wang, Zhican,Fang, Ying,Teague, Juli,Wong, Hansen,Morisseau, Christophe,Hammock, Bruce D.,Rock, Dan A.,Wang, Zhengping

, p. 712 - 720 (2017)

Oprozomib is an oral proteasome inhibitor currently under investigation in patients with hematologic malignancies or solid tumors. Oprozomib elicits potent pharmacological actions by forming a covalent bond with the active site N-terminal threonine of the

Fungi mediated conversion of benzil to benzoin and hydrobenzoin

Demir, Ayhan S.,Hamamci, Haluk,Ayhan, Peruze,Duygu, A. Nese,Igdir, A. Cigdem,Capanoglu, Doga

, p. 2579 - 2582 (2004)

An enzyme system of four fungi catalyses the reduction of benzil to benzoin, as well as benzoin to hydrobenzoin. Depending on the pH of the medium, both enantiomers of benzoin can be obtained in good yield and high ee starting from benzil via a reduction,

Asymmetric hydrogenation of 1,4-diketones: facile synthesis of enantiopure 1,4-diarylbutane-1,4-diols

Huang, Fanping,Shao, Pan-Lin,Song, Jingyuan,Wang, Jiang,Zhang, Xumu

supporting information, p. 262 - 265 (2022/01/06)

Owing to the biological significance and great synthetic value of 1,4-diarylbutane-1,4-diols and their derivatives, increasingly considerable attention has been paid to developing effective synthetic methods for chiral 1,4-diarylbutane-1,4-diols. We herei

Efficient splitting of alcohols into hydrogen and C–C coupled products over ultrathin Ni-doped ZnIn2S4 nanosheet photocatalyst

Li, Jing-Yu,Qi, Ming-Yu,Xu, Yi-Jun

, p. 1084 - 1091 (2022/03/15)

Integrating selective organic synthesis with hydrogen (H2) evolution in one photocatalytic redox reaction system sheds light on the underlying approach for concurrent employment of photogenerated electrons and holes towards efficient production of solar fuels and chemicals. In this work, a facile one-pot oil bath method has been proposed to fabricate a noble metal-free ultrathin Ni-doped ZnIn2S4 (ZIS/Ni) composite nanosheet for effective solar-driven selective dehydrocoupling of benzyl alcohol into value-added C–C coupled hydrobenzoin and H2 fuel, which exhibits higher performance than pure ZIS nanosheet. The remarkably improved photoredox activity of ZIS/Ni is mainly attributed to the optimized electron structure featuring narrower band gap and suitable energy band position, which facilitates the ability of light harvesting and photoexcited charge carrier separation and transfer. Furthermore, it has been demonstrated that it is feasible to employ ZIS/Ni for various aromatic alcohols dehydrocoupling to the corresponding C–C coupled products. It is expected that this work can stimulate further interest on the establishment of innovative photocatalytic redox platform coupling clean solar fuels synthesis and selective organic conversion in a sustainable manner.

Role of epoxide hydrolases and cytochrome p450s on metabolism of kzr-616, a first-in-class selective inhibitor of the immunoproteasomes

Anderl, Janet L.,Fang, Ying,Hammock, Bruce D.,Johnson, Henry,Kirk, Christopher,McMinn, Dustin,Morisseau, Christophe,Muchamuel, Tony,Wang, Jinhai

, p. 810 - 821 (2021/10/01)

KZR-616 is an irreversible tripeptide epoxyketone-based selective inhibitor of the human immunoproteasome. Inhibition of the immunoproteasome results in anti-inflammatory activity in vitro and based on promising therapeutic activity in animal models of rh

Ni2P Nanoalloy as an Air-Stable and Versatile Hydrogenation Catalyst in Water: P-Alloying Strategy for Designing Smart Catalysts

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supporting information, p. 4439 - 4446 (2021/02/09)

Non-noble metal-based hydrogenation catalysts have limited practical applications because they exhibit low activity, require harsh reaction conditions, and are unstable in air. To overcome these limitations, herein we propose the alloying of non-noble metal nanoparticles with phosphorus as a promising strategy for developing smart catalysts that exhibit both excellent activity and air stability. We synthesized a novel nickel phosphide nanoalloy (nano-Ni2P) with coordinatively unsaturated Ni active sites. Unlike conventional air-unstable non-noble metal catalysts, nano-Ni2P retained its metallic nature in air, and exhibited a high activity for the hydrogenation of various substrates with polar functional groups, such as aldehydes, ketones, nitriles, and nitroarenes to the desired products in excellent yields in water. Furthermore, the used nano-Ni2P catalyst was easy to handle in air and could be reused without pretreatment, providing a simple and clean catalyst system for general hydrogenation reactions.

Metal-free thermal organocatalytic pinacol coupling of arylaldehydes using an isonicotinate catalyst with bis(pinacolato)diboron

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, p. 24652 - 24655 (2021/07/29)

The metal-free thermal organocatalytic pinacol coupling of arylaldehydes has been developed. The intermolecular coupling of arylaldehydes catalyzed byt-butyl isonicotinate with bis(pinacolato)diboron as the co-reducing agent afforded 1,2-diphenylethane-1,2-diols. This reaction was also applicable to the intramolecular coupling of 1,1′-biphenyl-2,2′-dicarbaldehydes to afford 9,10-dihydrophenanthrene-9,10-diols. Various functional groups were tolerated under this coupling condition.

A convenient pinacol coupling of diaryl ketones with B2pin2viapyridine catalysis

Jo, Junhyuk,Kim, Seonyul,Choi, Jun-Ho,Chung, Won-Jin

supporting information, p. 1360 - 1363 (2021/02/22)

A convenient, pyridine-boryl radical-mediated pinacol coupling of diaryl ketones is developed. In contrast to the conventional pinacol coupling that requires sensitive reducing metal, the current method employs a stable diboron reagent and pyridine Lewis base catalyst for the generation of a ketyl radical. The newly developed process is operationally simple, and the desired diols are produced with excellent efficiency in up to 99% yield within 1 hour. The superior reactivity of diaryl ketone was observed over monoaryl carbonyl compounds and analyzed by DFT calculations, which suggests the necessity of both aromatic rings for the maximum stabilization of the transition states.

Electrochemical Arylation of Aldehydes, Ketones, and Alcohols: from Cathodic Reduction to Convergent Paired Electrolysis

Zhang, Sheng,Li, Lijun,Li, Jingjing,Shi, Jianxue,Xu, Kun,Gao, Wenchao,Zong, Luyi,Li, Guigen,Findlater, Michael

supporting information, p. 7275 - 7282 (2021/03/01)

Arylation of carbonyls, one of the most common approaches toward alcohols, has received tremendous attention, as alcohols are important feedstocks and building blocks in organic synthesis. Despite great progress, there is still a great gap to develop an ideal arylation method featuring mild conditions, good functional group tolerance, and readily available starting materials. We now show that electrochemical arylation can fill the gap. By taking advantage of synthetic electrochemistry, commercially available aldehydes (ketones) and benzylic alcohols can be readily arylated to provide a general and scalable access to structurally diverse alcohols (97 examples, >10 gram-scale). More importantly, convergent paired electrolysis, the ideal but challenging electrochemical technology, was employed to transform low-value alcohols into more useful alcohols. Detailed mechanism study suggests that two plausible pathways are involved in the redox neutral α-arylation of benzylic alcohols.

Mo–Catalyzed One-Pot Synthesis of N-Polyheterocycles from Nitroarenes and Glycols with Recycling of the Waste Reduction Byproduct. Substituent-Tuned Photophysical Properties

Hernández-Ruiz, Raquel,Rubio-Presa, Rubén,Suárez-Pantiga, Samuel,Pedrosa, María R.,Fernández-Rodríguez, Manuel A.,Tapia, M. José,Sanz, Roberto

supporting information, p. 13613 - 13623 (2021/08/23)

A catalytic domino reduction–imine formation–intramolecular cyclization–oxidation for the general synthesis of a wide variety of biologically relevant N-polyheterocycles, such as quinoxaline- and quinoline-fused derivatives, and phenanthridines, is reported. A simple, easily available, and environmentally friendly dioxomolybdenum(VI) complex has proven to be a highly efficient and versatile catalyst for transforming a broad range of starting nitroarenes involving several redox processes. Not only is this a sustainable, step-economical as well as air- and moisture-tolerant method, but also it is worth highlighting that the waste byproduct generated in the first step of the sequence is recycled and incorporated in the final target molecule, improving the overall synthetic efficiency. Moreover, selected indoloquinoxalines have been photophysically characterized in cyclohexane and toluene with exceptional fluorescence quantum yields above 0.7 for the alkyl derivatives.

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