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(S)-(-)-3,3'-DIBROMO-1,1'-BI-2-NAPHTHOL is a brominated derivative of 1,1'-bi-2-naphthol, known for its role as a chiral auxiliary in asymmetric synthesis and as a building block in organic synthesis. The (S)-enantiomer is predominantly utilized due to its specific stereochemistry, which is crucial for the synthesis of chiral compounds.

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  • 149821-06-7 Structure
  • Basic information

    1. Product Name: (S)-(-)-3,3'-DIBROMO-1,1'-BI-2-NAPHTHOL
    2. Synonyms: 3,3'-DIBROMO-1,1'-BI-2-NAPHTHOL;3,3-DIBROMO-1,1'-BI-2-NAPHTHOL;(R)-(+)-3,3'-DIBROMO-1,1'-BI-2-NAPHTHOL;(R)-3,3'-DIBROMO-1,1'-BI-2-NAPHTHOL;(R)-3,3'-DIBROMO-2,2'-DIHYDROXY-1,1'-BINAPHTHYL;(S)-3,3'-DIBROMO-2,2'-DIHYDROXY-1,1'-BINAPHTHYL;(S)-(-)-3,3'-DIBROMO-1,1'-BI-2-NAPHTHOL;(S)-3,3'-DIBROMO-1,1'-BI-2-NAPHTHOL
    3. CAS NO:149821-06-7
    4. Molecular Formula: C20H12Br2O2
    5. Molecular Weight: 444.12
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 149821-06-7.mol
  • Chemical Properties

    1. Melting Point: 256-260 °C
    2. Boiling Point: 469.941 °C at 760 mmHg
    3. Flash Point: 238.012 °C
    4. Appearance: /
    5. Density: 1.761 g/cm3
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: (S)-(-)-3,3'-DIBROMO-1,1'-BI-2-NAPHTHOL(CAS DataBase Reference)
    10. NIST Chemistry Reference: (S)-(-)-3,3'-DIBROMO-1,1'-BI-2-NAPHTHOL(149821-06-7)
    11. EPA Substance Registry System: (S)-(-)-3,3'-DIBROMO-1,1'-BI-2-NAPHTHOL(149821-06-7)
  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany: 3
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 149821-06-7(Hazardous Substances Data)

149821-06-7 Usage

Uses

Used in Pharmaceutical Industry:
(S)-(-)-3,3'-DIBROMO-1,1'-BI-2-NAPHTHOL is used as a building block for the synthesis of chiral drugs, leveraging its unique stereochemistry to create pharmaceuticals with desired biological activities and reduced side effects.
Used in Asymmetric Catalysis:
In the field of catalysis, (S)-(-)-3,3'-DIBROMO-1,1'-BI-2-NAPHTHOL is used as a chiral ligand for asymmetric catalysis, enhancing the selectivity of reactions to produce enantiomerically pure compounds, which is essential for the development of high-quality pharmaceuticals and agrochemicals.
Used in Organic Synthesis:
(S)-(-)-3,3'-DIBROMO-1,1'-BI-2-NAPHTHOL is utilized in the synthesis of chiral auxiliaries and ligands for enantioselective transformations, contributing to the production of optically active compounds with specific biological properties.
Used in Preparation of Optically Active Intermediates:
(S)-(-)-3,3'-DIBROMO-1,1'-BI-2-NAPHTHOL is employed in the preparation of optically active α,α-dibromo-1,2-diols, which serve as important intermediates in organic synthesis, further expanding its applications in the creation of various chemical compounds with specific uses.

Check Digit Verification of cas no

The CAS Registry Mumber 149821-06-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,8,2 and 1 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 149821-06:
(8*1)+(7*4)+(6*9)+(5*8)+(4*2)+(3*1)+(2*0)+(1*6)=147
147 % 10 = 7
So 149821-06-7 is a valid CAS Registry Number.

149821-06-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name (S)-(-)-3,3'-DIBROMO-1,1'-BI-2-NAPHTHOL

1.2 Other means of identification

Product number -
Other names rac-3,3'-dibromo-1,1'-bi-2-naphthol

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:149821-06-7 SDS

149821-06-7Relevant articles and documents

Oxidation of BINOLs by Hypervalent Iodine Reagents: Facile Synthesis of Xanthenes and Lactones

Zhang, Huaiyuan,Wirth, Thomas

, (2022/03/17)

Xanthene derivatives have broad applications in medicines, fluorescent probes, dyes, food additives, etc. Therefore, much attention was focused on developing the synthetic methods to prepare these compounds. Binaphthyl-based xanthene derivatives were prepared through the oxidation of BINOLs promoted by the hypervalent iodine reagent iodosylbenzene (PhIO). Nine-membered lactones were obtained through a similar oxidative reaction when iodoxybenzene (PhIO2) was used. Additionally, one-pot reactions of BINOLs, PhIO and nucleophiles such as alcohols and amines were also investigated to provide alkoxylated products and amides in good to excellent yields.

Synthesis of structurally diversified BINOLs and NOBINs via palladium-catalyzed C-H arylation with diazoquinones

Zhang, Ji-Wei,Jiang, Fei,Chen, Ye-Hui,Xiang, Shao-Hua,Tan, Bin

, p. 1515 - 1521 (2021/07/06)

Privileged biaryl frameworks, BINOL and NOBIN, were efficiently constructed with sole 1-DNQs as arylation reagents under one set of reaction conditions. The judicious selection of palladium-catalytic system plays a pivotal role in the excellent selectivities. This transformation accommodated fairly broad substrate generality for both 2-naphthol and N-Boc-2-naphthylamine and afforded the structurally diversified BINOLs and NOBIN derivatives in high efficiency. Notably, the bromo-substituents which cannot survive in conventional palladium-catalyzed reactions were well-compatible with this set of conditions, providing an effective handle for further enriching the library of BINOLs and NOBINs. Preliminary attempts on the asymmetric variant of this reaction were also performed with up to 80:20 er for BINOLs synthesis. [Figure not available: see fulltext.].

Enantioselective Synthesis of 3,3′-Disubstituted 2-Amino-2′-hydroxy-1,1′-binaphthyls by Copper-Catalyzed Aerobic Oxidative Cross-Coupling

Zhao, Xiao-Jing,Li, Zi-Hao,Ding, Tong-Mei,Tian, Jin-Miao,Tu, Yong-Qiang,Wang, Ai-Fang,Xie, Yu-Yang

supporting information, p. 7061 - 7065 (2021/02/27)

A challenging direct asymmetric catalytic aerobic oxidative cross-coupling of 2-naphthylamine and 2-naphthol, using a novel CuI/SPDO system, has been successfully developed for the first time. Enantioenriched 3,3′-disubstituted NOBINs were achieved and could be readily derived to divergent chiral ligands and catalysts. This reaction features high enantioselectivities (up to 96 % ee) and good yields (up to 80 %). The DFT calculations suggest that the F–H interactions between CF3 of L17 and H-1,8 of 2-naphthol, and the π–π stacking between the two coupling partners could play vital roles in the enantiocontrol of this cross-coupling reaction.

Copper-Complex-Catalyzed Asymmetric Aerobic Oxidative Cross-Coupling of 2-Naphthols: Enantioselective Synthesis of 3,3′-Substituted C1-Symmetric BINOLs

Tian, Jin-Miao,Wang, Ai-Fang,Yang, Ju-Song,Zhao, Xiao-Jing,Tu, Yong-Qiang,Zhang, Shu-Yu,Chen, Zhi-Min

supporting information, p. 11023 - 11027 (2019/07/08)

A novel chiral 1,5-N,N-bidentate ligand based on a spirocyclic pyrrolidine oxazoline backbone was designed and prepared, and it coordinates CuBr in situ to form an unprecedented catalyst that enables efficient oxidative cross-coupling of 2-naphthols. Air serves as an external oxidant and generates a series of C1-symmetric chiral BINOL derivatives with high enantioselectivity (up to 99 % ee) and good yield (up to 87 %). This approach is tolerant of a broader substrates scope, particularly substrates bearing various 3- and 3′-substituents. A preliminary investigation using one of the obtained C1-symmetric BINOL products was used as an organocatalyst, exhibiting better enantioselectivity than the previously reported organocatalyst, for the asymmetric α-alkylation of amino esters.

The Interrupted Pummerer Reaction in a Sulfoxide-Catalyzed Oxidative Coupling of 2-Naphthols

He, Zhen,Pulis, Alexander P.,Procter, David J.

supporting information, p. 7813 - 7817 (2019/05/15)

A benzothiophene S-oxide catalyst, generated in situ by sulfur oxidation with H2O2, mediates the oxidative coupling of 2-naphthols. Key to the catalytic process is the capture and inversion of reactivity of a 2-naphthol partner, using an interrupted Pummerer reaction of an unusual benzothiophene S-oxide, followed by subsequent coupling with a second partner. The new catalytic manifold has been showcased in the synthesis of the bioactive natural products, (±)-nigerone and (±)-isonigerone. Although Pummerer reactions are used widely, their application in catalysis is rare, and our approach represents a new catalytic manifold for metal-free C?C bond formation.

Enantioenriched synthesis of C 1-symmetric BINOLs: Iron-catalyzed cross-coupling of 2-naphthols and some mechanistic insight

Egami, Hiromichi,Matsumoto, Kenji,Oguma, Takuya,Kunisu, Takashi,Katsuki, Tsutomu

supporting information; experimental part, p. 13633 - 13635 (2010/11/17)

Highly enantioselective aerobic oxidative cross-coupling of 2-naphthols with broad substrate scope was achieved using an iron(salan) complex as the catalyst. Enantiomeric excesses of the products ranged from 87 to 95%. The scope of the cross-coupling reac

Enantioselective catalytic conjugate addition of dialkylzinc reagents using copper-phosphoramidite complexes; ligand variation and non-linear effects

Arnold, Leggy A.,Imbos, Rosalinde,Mandoli, Alessandro,De Vries, André H.M.,Naasz, Robert,Feringa, Ben L.

, p. 2865 - 2878 (2007/10/03)

A variety of new chiral phosphoramidites was synthesised and tested in the copper-catalysed enantioselective conjugate addition of diethylzinc to cyclohexenone and chalcone in order to assess the structural features that are important for stereocontrol. A

Polymerization of enantiomerically pure 2,3-dicarboalkoxynorbornadienes and 5,6-disubstituted norbornenes by well-characterized molybdenum ring-opening metathesis polymerization initiators. Direct determination of tacticity in cis, highly tactic and trans

O'Dell, Richard,McConville, David H.,Hofmeister, Gretchen E.,Schrock, Richard R.

, p. 3414 - 3423 (2007/10/02)

The ring-opening metathesis polymerization (ROMP) of enantiomerically pure dicarboalkoxynorbornadienes (2,3-(CO2R*)2-norbornadiene where R* = (1R,2S,5R)-(-)-menthyl (2a) or (R)-(-)-pantalactonyl (2b)) with Mo-(CHCMe2Ph)(NA

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