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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1852104Generated: October 26, 2026

Pyrrolidine-1-carbonitrile → HCID 178487758, compound

https://huagongshe.com/reaction/1852104

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrrolidine-1-carbonitrileHCID 73737—
ReactantN,N-diethyl-4-methoxy-2-methyl-benzamideHCID 11053218—
ReactantHCID 178418306HCID 178418306—
SolventTetrahydrofuranHCID 8028—
ProductHCID 178487758HCID 178487758100%

Reaction Steps

To a solution of N,N-diethyl-4-methoxy-2-methylbenzamide (0.270 g, 1.220 mmol) in THF (10 mL) was added tert-butyllithium (1.077 mL, 1.830 mmol) dropwise at −78° C. After stirring for 0.5 h, pyrrolidine-1-carbonitrile (0.135 mL, 1.342 mmol) was added, then the solution was warmed to rt, and stirred for 16 h. The reaction mixture was quenched with MeOH, neutralized with 1.5 mL of 4.0M HCl in dioxane. Extracted product with 20 mL of DCM. The solution was evaporated on rotovap and then placed under high vacuum for 1 h to give 6-methoxy-3-(pyrrolidin-1-yl)isoquinolin-1-ol (298 mg, 100% yield) which was used in the next step without further purification. MS m/z 245.1 (M++1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08957203B2
Source datasetuspto-grants-2015_02
ORD IDord-bfa5087cc40641a6a4d891c5540858e6
Source noteuspto-grants-2015_02