Welcome to LookChem.com Sign In|Join Free

CAS

  • or
3,4-DIMETHOXYBENZYL BROMIDE is an organic compound characterized by the presence of two methoxy groups at the 3rd and 4th positions of a benzene ring, with a bromine atom attached to the benzyl carbon. It is a valuable intermediate in the synthesis of various organic compounds and pharmaceuticals due to its unique chemical structure and reactivity.

21852-32-4 Suppliers

Post Buying Request

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier
  • 21852-32-4 Structure
  • Basic information

    1. Product Name: 3,4-DIMETHOXYBENZYL BROMIDE
    2. Synonyms: 3,4-DIMETHOXYBENZYL BROMIDE;4-(BroMoMethyl)-1,2-diMethoxybenzene;3,4-DiMethoxybenzyl BroMide Discontinued due to stability;Veratryl bromide;Benzene, 4-(broMoMethyl)-1,2-diMethoxy-;Toluene, α-bromo-3,4-dimethoxy-
    3. CAS NO:21852-32-4
    4. Molecular Formula: C9H11BrO2
    5. Molecular Weight: 231.08644
    6. EINECS: N/A
    7. Product Categories: Aromatics;Miscellaneous Reagents
    8. Mol File: 21852-32-4.mol
    9. Article Data: 65
  • Chemical Properties

    1. Melting Point: 56-58℃
    2. Boiling Point: 273℃
    3. Flash Point: 116℃
    4. Appearance: /
    5. Density: 1.384
    6. Vapor Pressure: 0.00991mmHg at 25°C
    7. Refractive Index: 1.538
    8. Storage Temp.: Inert atmosphere,Store in freezer, under -20°C
    9. Solubility: CDCl3;
    10. CAS DataBase Reference: 3,4-DIMETHOXYBENZYL BROMIDE(CAS DataBase Reference)
    11. NIST Chemistry Reference: 3,4-DIMETHOXYBENZYL BROMIDE(21852-32-4)
    12. EPA Substance Registry System: 3,4-DIMETHOXYBENZYL BROMIDE(21852-32-4)
  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 21852-32-4(Hazardous Substances Data)

21852-32-4 Usage

Uses

Used in Chemical Synthesis:
3,4-DIMETHOXYBENZYL BROMIDE is used as a reagent for dimethoxybenzyl alkylations, a type of chemical reaction that involves the transfer of an alkyl group to another molecule. This process is essential in the synthesis of various organic compounds, including pharmaceuticals, agrochemicals, and other specialty chemicals.
Used in Pharmaceutical Industry:
In the pharmaceutical industry, 3,4-DIMETHOXYBENZYL BROMIDE is used as a key intermediate in the synthesis of various drugs and drug candidates. Its unique chemical structure allows for the development of novel therapeutic agents with potential applications in treating a wide range of diseases and medical conditions.
Used in Research and Development:
3,4-DIMETHOXYBENZYL BROMIDE is also utilized in research and development laboratories for the exploration of new chemical reactions and the synthesis of novel compounds. Its versatility as a reagent makes it a valuable tool for chemists working on the design and development of new molecules with potential applications in various industries.

Check Digit Verification of cas no

The CAS Registry Mumber 21852-32-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,5 and 2 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 21852-32:
(7*2)+(6*1)+(5*8)+(4*5)+(3*2)+(2*3)+(1*2)=94
94 % 10 = 4
So 21852-32-4 is a valid CAS Registry Number.
InChI:InChI=1/C9H11BrO2/c1-11-8-4-3-7(6-10)5-9(8)12-2/h3-5H,6H2,1-2H3

21852-32-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-(bromomethyl)-1,2-dimethoxybenzene

1.2 Other means of identification

Product number -
Other names 1-bromomethyl-3,4-dimethoxybenzene

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:21852-32-4 SDS

21852-32-4Relevant articles and documents

Total synthesis of dehaloperophoramidine using a highly diastereoselective Hosomi-Sakurai reaction

Wilkie, Ross. P.,Neal, Andrew R.,Johnston, Craig A.,Voute, Nicholas,Lancefield, Christopher S.,Stell, Matthew D.,Medda, Federico,Makiyi, Edward F.,Turner, Emma M.,Stephen Ojo,Slawin, Alexandra M. Z.,Lebl, Tomas,Mullen, Peter,Harrison, David J.,Ireland, Chris M.,Westwood, Nicholas J.

, p. 10747 - 10750 (2016)

The synthesis of dehaloperophoramidine, a non-halogenated derivative of the marine natural product perophoramidine, and its biological activity towards HCT116, HT29 and LoVo colorectal carcinoma cells is reported. A [3,3]-Claisen rearrangement and an epoxide opening/allylsilylation reaction installed the contiguous all-carbon quaternary stereocentres with the required relative stereochemistry.

Covalent Inhibition of Bacterial Urease by Bifunctional Catechol-Based Phosphonates and Phosphinates

Pagoni, Aikaterini,Grabowiecka, Agnieszka,Tabor, Wojciech,Mucha, Artur,Vassiliou, Stamatia,Berlicki, ?ukasz

supporting information, p. 404 - 416 (2021/01/13)

In this study, a new class of bifunctional inhibitors of bacterial ureases, important molecular targets for antimicrobial therapies, was developed. The structures of the inhibitors consist of a combination of a phosphonate or (2-carboxyethyl)phosphinate functionality with a catechol-based fragment, which are designed for complexation of the catalytic nickel ions and covalent bonding with the thiol group of Cys322, respectively. Compounds with three types of frameworks, including β-3,4-dihydroxyphenyl-, α-3,4-dihydroxybenzyl-, and α-3,4-dihydroxybenzylidene-substituted derivatives, exhibited complex and varying structure-dependent kinetics of inhibition. Among irreversible binders, methyl β-(3,4-dihydroxyphenyl)-β-(2-carboxyethyl)phosphorylpropionate was observed to be a remarkably reactive inhibitor of Sporosarcina pasteurii urease (kinact/KI = 10 420 s-1 M-1). The high potential of this group of compounds was also confirmed in Proteus mirabilis whole-cell-based inhibition assays. Some compounds followed slow-binding and reversible kinetics, e.g., methyl β-(3,4-dihydroxyphenyl)-β-phosphonopropionate, with Ki? = 0.13 μM, and an atypical low dissociation rate (residence time τ = 205 min).

New 3-(1H-benzo[d]imidazol-2-yl)quinolin-2(1H)-one-based triazole derivatives: Design, synthesis, and biological evaluation as antiproliferative and apoptosis-inducing agents

Gaikwad, Nikhil B.,Bansode, Sapana,Biradar, Shankar,Ban, Mayuri,Srinivas, Nanduri,Godugu, Chandraiah,Yaddanapudi, Venkata M.

, (2021/08/07)

A series of 1,2,3-triazole derivatives based on the quinoline–benzimidazole hybrid scaffold was designed, synthesized, and screened against a panel of NCI-60 humanoid cancer cell lines for in vitro cytotoxicity evaluation, which revealed that compound Q6 was the most potent cytotoxic agent with excellent GI50, TGI, and LC50 values on multiple cancer cell lines. Q6 was tested further on the BT-474 breast cancer line to evaluate the mechanism of action. Preliminary screening studies based on the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay revealed that compound Q6 had an excellent antiproliferative effect against human breast cancer cells, BT-474, with IC50 values of 0.59 ± 0.01 μM. The detailed study based on the acridine orange/ethidium bromide staining (AO/EB) and the 4′,6-diamidino-2-phenylindole (DAPI) assay suggested that the antiproliferative activity shown was due to the induction of apoptosis on exposure to Q6. Further, DCFDA staining showed the generation of reactive oxygen species, altering the mitochondrial potential and leading to the initiation of apoptosis. This was further supported by JC-1 staining, indicating that this scaffold can contribute to the development of more potent derivatives.

Homologation of Electron-Rich Benzyl Bromide Derivatives via Diazo C-C Bond Insertion

Alegre-Requena, Juan V.,De Lescure, Louis,Modak, Atanu,Paton, Robert S.,Race, Nicholas J.,Rynders, Kathryn J.

supporting information, (2021/12/27)

The ability to manipulate C-C bonds for selective chemical transformations is challenging and represents a growing area of research. Here, we report a formal insertion of diazo compounds into the "unactivated"C-C bond of benzyl bromide derivatives catalyzed by a simple Lewis acid. The homologation reaction proceeds via the intermediacy of a phenonium ion, and the products contain benzylic quaternary centers and an alkyl bromide amenable to further derivatization. Computational analysis provides critical insight into the reaction mechanism, in particular the key selectivity-determining step.

Hydrothermal Liquefaction of α-O-4 Aryl Ether Linkages in Lignin

Lui, Matthew Y.,Chan, Bun,Yuen, Alexander K. L.,Masters, Anthony F.,Maschmeyer, Thomas

, p. 2002 - 2006 (2020/03/05)

By using lignin model compounds with relevant key characteristic structural features, the reaction pathways of α-O-4 aryl ether linkages under hydrothermal conditions are elucidated. Experimental results and computational modeling suggest that the α-O-4 linkages in lignin undergo catalyzed hydrolysis and elimination to give phenolic and alkenylbenzene derivatives as major products in subcritical water. The decreased relative permittivity of water at these high temperatures and pressures facilitates the elimination reactions. The alkyl group on the α-carbon and the methoxy groups on the phenyl rings both have positive effects on the rate of conversion of α-O-4 linkages in native lignin.

Photochemical benzylic bromination in continuous flow using BrCCl3 and its application to telescoped p-methoxybenzyl protection

Otake, Yuma,Williams, Jason D.,Rincón, Juan A.,De Frutos, Oscar,Mateos, Carlos,Kappe, C. Oliver

supporting information, p. 1384 - 1388 (2019/02/14)

BrCCl3 represents a rarely used benzylic brominating reagent with complementary reactivity to other reagents. Its reactivity has been revisited in continuous flow, revealing compatibility with electron-rich aromatic substrates. This has brought about the development of a p-methoxybenzyl bromide generator for PMB protection, which was successfully demonstrated on a pharmaceutically relevant intermediate on 11 g scale, giving 91% yield and a PMB-Br space-time-yield of 1.27 kg L?1 h?1

Nitrogen-containing heterocycle derivatives and applications thereof

-

Paragraph 0171; 0172, (2018/03/24)

The invention discloses nitrogen-containing heterocycle derivatives and applications thereof, relates to compounds of a general formula (V), a preparing method thereof and applications of the compounds in medicines, and more particularly relates to compound derivatives of compounds shown as the general formula (V), a preparing method thereof and uses of the derivatives in medicines preventing andtreating hyperlipemia, hypercholesterolemia, hypertriglyceridemia, fatty degeneration of liver, diabetes mellitus type 2, hyperglycemia, obesity or insulin resistance and metabolic syndrome and resisting antitumor, with the derivatives being adopted as therapeutic agents. The compounds disclosed by the invention can also reduce total cholesterol, LDL-cholesterol and triglyceride, can increase liver LDL receptor expression, and inhibit PCSK9 expression.

Design, synthesis and biological evaluation of novel pyrimidinedione derivatives as DPP-4 inhibitors

Li, Ning,Wang, Li-Jun,Jiang, Bo,Guo, Shu-Ju,Li, Xiang-Qian,Chen, Xue-Chun,Luo, Jiao,Li, Chao,Wang, Yi,Shi, Da-Yong

supporting information, p. 2131 - 2135 (2018/05/25)

A series of novel pyrimidinedione derivatives were designed and evaluated for in vitro dipeptidyl peptidase-4 (DPP-4) inhibitory activity and in vivo anti-hyperglycemic efficacy. Among them, the representative compounds 11, 15 and 16 showed excellent inhibitory activity of DPP-4 with IC50 values of 64.47 nM, 188.7 nM and 65.36 nM, respectively. Further studies revealed that compound 11 was potent in vivo hypoglycemic effect. The structure–activity relationships of these pyrimidinedione derivatives had been discussed, which would be useful for developing novel DPP-4 inhibitors as treating type 2 diabetes.

Discovery of boron-containing compounds as Aβ aggregation inhibitors and antioxidants for the treatment of Alzheimer's disease

Lu, Chuan-Jun,Hu, Jinhui,Wang, Zechen,Xie, Shishun,Pan, Tingting,Huang, Ling,Li, Xingshu

, p. 1862 - 1870 (2018/11/24)

A novel series of boron-containing compounds were designed, synthesized and evaluated as multi-target-directed ligands against Alzheimer's disease. The biological activity results demonstrated that these compounds possessed a significant ability to inhibit self-induced Aβ aggregation (20.5-82.8%, 20 μM) and to act as potential antioxidants (oxygen radical absorbance capacity assay using fluorescein (ORAC-FL) values of 2.70-5.87). In particular, compound 17h is a potential lead compound for AD therapy (IC50 = 3.41 μM for self-induced Aβ aggregation; ORAC-FL value = 4.55). Compound 17h also functions as a metal chelator. These results indicated that boron-containing compounds could be new structural scaffolds for the treatment of AD.

Synthesis of (+)-salvianolic acid A from sodium Danshensu

Xu, Kai,Liu, Hao,Liu, Delong,Sheng, Cheng,Shen, Jiefeng,Zhang, Wanbin

supporting information, p. 5996 - 6002 (2018/09/06)

(+)-Salvianolic acid A, one of the most active components in the traditional Chinese medicine Danshen, has been synthesized over 10 steps in 6.5% overall yield. Starting from inexpensive ortho-vanillin and sodium Danshensu (synthesized via asymmetric catalysis in our group), the process consists of the following: A Wittig reaction that gives the desire product with absolute E-configuration, a demethylation reaction with AlCl3 in a satisfactory yield, and a practical deprotection of allylic groups to afford the terminal product (+)-salvianolic acid A. The current synthetic technology possesses the advantages of using inexpensive starting materials, mild reaction conditions and has the potential for use in large scale synthesis.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 21852-32-4