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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1891948Generated: October 31, 2026

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

https://huagongshe.com/reaction/1891948

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 numberUS08507530B2
Source datasetuspto-grants-2013_08
ORD IDord-1c8aa05d56dc4fc1918664b2e5de7aa9
Source noteuspto-grants-2013_08