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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1075876Generated: October 30, 2026

1-Piperazinecarboxylic acid, ethyl ester → 1-Carbethoxy-4-(10,11-dihydro-3-methoxy-8-methylthio-dibenzo[b,f]thiepin-10-yl)-piperazine

https://huagongshe.com/reaction/1075876

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Piperazinecarboxylic acid, ethyl esterHCID 8431—
Reactant10-Chloro-10,11-dihydro-3-methoxy-8-methylthio-dibenzo[b,f]thiepinHCID 12822201—
SolventChloroformHCID 6212—
Product1-Carbethoxy-4-(10,11-dihydro-3-methoxy-8-methylthio-dibenzo[b,f]thiepin-10-yl)-piperazineHCID 13498244—

Reaction Steps

24 G. of 10-chloro-10,11-dihydro-3-methoxy-8-methylthio-dibenzo[b,f]thiepin in 100 ml. of chloroform are heated with 55 ml. of 1-carbethoxypiperazine under reflux conditions for 20 hours. The mixture is poured on to ice/water and extracted with chloroform. The organic phase is dried over magnesium sulfate and evaporated under reduced pressure, whereby there is obtained crude 1-carbethoxy-4-(10,11-dihydro-3-methoxy-8-methylthiodibenzo[b,f]thiepin-10-yl)-piperazine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03954764
Source datasetuspto-grants-1976_05
ORD IDord-6f38a79cdb88423f8ee2f036c9538325
Source noteuspto-grants-1976_05