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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1694196Generated: November 1, 2026

Dimethyl Sulfoxide → 1-Bromo-4-(2-nitroethyl)benzene

https://huagongshe.com/reaction/1694196

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethyl SulfoxideHCID 679—
Reactanttrans-4-Bromo-beta-nitrostyreneHCID 688204—
ReactantSodium borohydrideHCID 4311764—
SolventAcetic AcidHCID 176—
Product1-Bromo-4-(2-nitroethyl)benzeneHCID 1118380994.3%

Reaction Steps

To a solution of 1-bromo-4-((E)-2-nitro-vinyl)-benzene (1 g, 4.37 mmol) described in Manufacturing Example 207-1-1 in acetic acid (0.6 mL) and dimethyl sulfoxide (10 mL) was added sodium borohydride (265 mg, 6.99 mmol), which was stirred for 30 minutes at room temperature. The mixture was cooled with ice water and partitioned into ethyl acetate and water. The organic layer was separated, washed with water, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under a reduced pressure to obtain the title compound (948 mg). The title compound was used in the following reaction without any further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08158657B2
Source datasetuspto-grants-2012_04
ORD IDord-611905d831c8400c8f19004d47dbf9fc
Source noteuspto-grants-2012_04