Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1417850Generated: October 26, 2026

4-(Piperazin-1-yl)benzene-1-sulfonamide → (S)-(-)-3-Bromo-4-[4-[2-(6-bromoisochroman-1-yl)ethyl]piperazin-1-yl]benzenesulfonamide

https://huagongshe.com/reaction/1417850

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-(Piperazin-1-yl)benzene-1-sulfonamideHCID 901897—
Reactant2-(6-Bromoisochroman-1-yl)ethanolHCID 23288830—
Reactant3-Bromo-4-(piperazin-1-yl)-benzenesulfonamide hydrochlorideHCID 23288838—
Reactant1-(2-Bromo-4-methoxyphenyl)piperazineHCID 23288928—
Product(S)-(-)-3-Bromo-4-[4-[2-(6-bromoisochroman-1-yl)ethyl]piperazin-1-yl]benzenesulfonamideHCID 54523419—

Reaction Steps

Following the general procedure of EXAMPLE 49 and making non-critical variations, 2-(6-bromoisochroman-1-yl)ethanol (LXXIX, 0.399 g) and 3-bromo-4-(piperazin-1-yl)-benzenesulfonamide hydrochloride (VIII, Chart C, 0.544 g; prepared by the method of EXAMPLE 37 but using 4-(piperazin-1-yl)benzenesulfonamide (IV) in place of 1-(4-methoxyphenyl)piperazine) are combined to give the title compound; mp 206°-208°; MS (m/z) 557 and 559; IR (mineral oil) 1165, 1338, 1450, 616, 1586 and 731 cm-1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05877317
Source datasetuspto-grants-1999_03
ORD IDord-68e3fa093a0b4493b2e1b6cedc59944a
Source noteuspto-grants-1999_03