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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1461749Generated: October 30, 2026

Benzoyl chloride → HCID 14277502, compound

https://huagongshe.com/reaction/1461749

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzoyl chlorideHCID 7412—
Reactant8alpha-Amino-6-n-propylergolineHCID 13468803—
SolventDichloromethaneHCID 6344—
SolventTriethylamineHCID 8471—
ProductHCID 14277502HCID 14277502—

Reaction Conditions

Temperature20 °C

Reaction Steps

1.4 ml benzoylchloride in 5 ml CH2Cl2 are added drop-wise with stirring at 5°-10° C. to a suspension of 3.0 g 8α-amino-6-n-propylergoline in 100 ml CH2Cl2 and 2.0 ml triethylamine. The obtained reaction mixture is stirred for 15 to 20 hours at 20° C. and then washed thoroughly 2× with 25 ml 2N NaOH and H2O. The organic phase is dried over MgSO4, filtered and evaporated. The residue (pale brown foam) is dissolved in ethanol, and crystallised as the hydrobromide by addition of equivalent amounts of HBr in acetic acid. M.P. on recrystallisation from C2H5OH/H2O (80:2)=290° with decomposition.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05077298
Source datasetuspto-grants-1991_12
ORD IDord-9012bb01317a4757b0e5e9c0ea6ce225
Source noteuspto-grants-1991_12