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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2236126Generated: November 1, 2026

Pyrrolidine → HCID 59301647, compound

https://huagongshe.com/reaction/2236126

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrrolidineHCID 31268—
Reactant7-Chloro-1,3-dihydro-2H-indol-2-oneHCID 3731010—
Reactant1-Azulene carboxyaldehydeHCID 11744870—
SolventEthanolHCID 702—
ProductHCID 59301647HCID 5930164757.5%

Reaction Steps

0.3519 g 7-chlorooxindole (0.0021 mole) and 0.323 g azulene aldehyde (0.0021 mole) were dissolved in 30 mL dried ethanol. 1.5 mL pyrrolidine (1M) was then added and uniformly stirred at reflux temperature for two hours. After removal of dried ethanol, the results were extracted by dichloromethane and citric acid aqueous solution. The organic layer was collected, dried with anhydrous magnesium sulfate, filtered, concentrated under vacuum, and separated by silica gel column chromatography to give Z-form Compound 042 (0.3693 g). The total weight of 7-chlorooxindole-azulene was 0.3693 g (57.56%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07714146B2
Source datasetuspto-grants-2010_05
ORD IDord-a40f02b1d8ca4044a11b755a6dc6d29c
Source noteuspto-grants-2010_05