4,5-DIMETHOXY-2-NITROBENZYL BROMIDE
- Product Name
- 4,5-DIMETHOXY-2-NITROBENZYL BROMIDE
- CAS No.
- 53413-67-5
- Chemical Name
- 4,5-DIMETHOXY-2-NITROBENZYL BROMIDE
- Synonyms
- 6-NITROVERATRYL BROMIDE;1-(Bromomethyl)-4,5-dimethoxy-2-nitrobenzene;-4,5-dimethoxy-2-nitrobenzene;4,5-dimenoxy-2-nitrobenzyl bromide;3,4-Dimethoxy-6-nitrobenzyl bromide;4,5-DIMETHOXY-2-NITROBENZYL BROMIDE;4,5-Dimethoxy-2-nitrobenzyl bromide 95%;4,5-Dimethoxy-2-nitro-1-bromomethylbenzene;1-(bromomethyl)-2-nitro-4,5-dimethoxybenzene;Benzene, 1-(bromomethyl)-4,5-dimethoxy-2-nitro-
- CBNumber
- CB4762285
- Molecular Formula
- C9H10BrNO4
- Formula Weight
- 276.08
- MOL File
- 53413-67-5.mol
4,5-DIMETHOXY-2-NITROBENZYL BROMIDE Property
- Melting point:
- 131-133 °C (lit.)
- Boiling point:
- 372.3±37.0 °C(Predicted)
- Density
- 1.544
- storage temp.
- under inert gas (nitrogen or Argon) at 2-8°C
- form
- Crystalline Powder or Needles
- color
- Yellow to brown
- Sensitive
- Lachrymatory
- InChI
- InChI=1S/C9H10BrNO4/c1-14-8-3-6(5-10)7(11(12)13)4-9(8)15-2/h3-4H,5H2,1-2H3
- InChIKey
- UEKFEYNZISYRRH-UHFFFAOYSA-N
- SMILES
- C1(CBr)=CC(OC)=C(OC)C=C1[N+]([O-])=O
Safety
- Hazard Codes
- C
- Risk Statements
- 34
- Safety Statements
- 22-26-27-36/37/39-45
- RIDADR
- UN 3261 8/PG 2
- WGK Germany
- 3
- HazardClass
- 8
- PackingGroup
- III
- HS Code
- 29093090
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H314Causes severe skin burns and eye damage
- Precautionary statements
-
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P363Wash contaminated clothing before reuse.
N-Bromosuccinimide Price
- Product number
- 392855
- Product name
- 4,5-Dimethoxy-2-nitrobenzyl bromide
- Purity
- 97%
- Packaging
- 1g
- Price
- $121.6
- Updated
- 2025/07/31
- Product number
- 392855
- Product name
- 4,5-Dimethoxy-2-nitrobenzyl bromide
- Purity
- 97%
- Packaging
- 5g
- Price
- $507
- Updated
- 2025/07/31
- Product number
- FB139514
- Product name
- 4,5-Dimethoxy-2-nitrobenzyl bromide
- Packaging
- 250mg
- Price
- $75
- Updated
- 2021/12/16
- Product number
- 4754-9-00
- Product name
- 4,5-Dimethoxy-2-nitrobenzyl bromide
- Purity
- 95%
- Packaging
- 1g
- Price
- $125
- Updated
- 2021/12/16
- Product number
- FB139514
- Product name
- 4,5-Dimethoxy-2-nitrobenzyl bromide
- Packaging
- 1g
- Price
- $180
- Updated
- 2021/12/16
4,5-DIMETHOXY-2-NITROBENZYL BROMIDE Chemical Properties,Usage,Production
Uses
1-(Bromomethyl)-4,5-dimethoxy-2-nitrobenzene is a useful research chemical.
Uses
4,5-Dimethoxy-2-nitrobenzyl bromide (DMNB bromide, 6-nitroveratryl bromide) is suitable reagent used in the synthesis of N-(4,5-dimethoxy-2-nitrobenzyl)vanillylamine which forms caged vanilloid. It may be used in the synthesis of the following:
- 4-(4′,5′-dimethoxy-2-nitrobenzyloxy)benzaldehyde, a DMNB-caged aldehyde
- N-[4-[(4,5-dimethoxy-2-nitrobenzyl)oxy]-3-methoxybenzyl]acetamide
- caged derivative of pyridostatin ([C]-PDS)
- photosensitive polyimide (PI-DMNB)
- caged β-ecdysone
- 4-tert-butyldimethylsilyloxy-1-(2-deoxy-3,5-di-O-toluoyl-β-D-ribofuranosyl)-2-(6-nitroveratrylthio)-1H-benzimidazole, an intermediate in synthesis of phosphoramidite bearing 4-hydroxy-2-mercaptobenzimidazole (SBNV) nucleobase
- alkylation of dihydrofluorescein
- 4-(4′,5′-Dimethoxy-2′-nitrobenzyloxy)benzaldehyde
General Description
4,5-Dimethoxy-2-nitrobenzyl bromide (DMNBB, 1-(Bromomethyl)-4,5-dimethoxy-2-nitrobenzene) is a 4,5-dimethoxy-2-nitrobenzyl derivative. 4,5-Dimethoxy-2-nitrobenzyl (DMNB) group of DMNBB is used as a photolabile protecting group in caging technology to develop pro-drugs. Synthesis of 1-(bromomethyl)-4,5-dimethoxy-2-nitrobenzene by using 6-nitroveratraldehyde as starting reagent has been reported.
Synthesis
1016-58-6
53413-67-5
Step 1: A tetrahydrofuran (THF, 100 mL) solution of phosphorus tribromide (27.1 g, 100.0 mmol) was added slowly and dropwise through a dosing funnel to a stirring solution of 4,5-dimethoxy-2-nitrobenzenemethanol (10.7 g, 50.0 mmol) in THF (200 mL) under nitrogen protection. The reaction mixture was stirred overnight and the THF was removed by distillation under reduced pressure.The residue was partitioned with saturated aqueous sodium bicarbonate (NaHCO3) to separate the organic layer. The organic layer was subsequently washed with saturated aqueous NaHCO3 and dried with anhydrous magnesium sulfate (MgSO4). After filtration, the filtrate was concentrated to give a dark yellow oil. The oil was purified by silica gel column chromatography (SiO2, elution gradient: hexane/ethyl acetate from 4:1 to 3:1). Concentration of the product-containing eluate gave 11.8 g of 1-(bromomethyl)-4,5-dimethoxy-2-nitrobenzene as a bright yellow solid in 86% yield.
References
[1] Chemical Communications, 2017, vol. 53, # 68, p. 9470 - 9473
[2] Patent: WO2017/95704, 2017, A1. Location in patent: Page/Page column 58
[3] Journal of Organic Chemistry, 1990, vol. 55, # 5, p. 1585 - 1589
[4] Photochemical and Photobiological Sciences, 2012, vol. 11, # 3, p. 548 - 555
[5] European Journal of Medicinal Chemistry, 2012, vol. 55, p. 125 - 136
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Raw materials
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