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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 271334Generated: October 31, 2026

Hydrochloric Acid → HCID 178511719, compound

https://huagongshe.com/reaction/271334

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 178515020HCID 178515020—
SolventEthanolHCID 702—
SolventTetrahydrofuranHCID 8028—
ProductHCID 178511719HCID 17851171988.5%

Reaction Steps

To a solution of 0.7 g of racemic trans-2-[4-(2-fluoro-2-phenyl-ethoxy)-cyclohexyl]-isoindole-1,3-dione in 15 mL of THF and 15 mL of ethanol was added 0.3 mL of hydrazine hydrate and the mixture heated to reflux for 4 h, then 5 mL of 6N HCl was added and the reflux was continued for 1 h. The cooled mixture was concentrated under reduced pressure to remove ethanol and filtered. The filter pad was washed with 2×10 mL of dilute HCl and the combined filtrates basified to pH 10 with 20% sodium hydroxide and extracted with 3×25 mL portions of chloroform. The combined extracts were dried over magnesium sulfate and concentrated under reduced pressure. Further drying under vacuum gave 0.4 g of product as an oil. MS (m+1)=238.3.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07452893B2
Source datasetuspto-grants-2008_11
ORD IDord-926955d63326440c8ded577a485961a6
Source noteuspto-grants-2008_11