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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1987064Generated: November 1, 2026

HCID 57722726, compound → 2,2-Difluoro-2-(quinolin-8-yl)ethan-1-amine

https://huagongshe.com/reaction/1987064

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 57722726HCID 57722726—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product2,2-Difluoro-2-(quinolin-8-yl)ethan-1-amineHCID 5342877779.9%

Reaction Steps

A solution of 8-(2-azido-1,1-difluoro-ethyl)-quinoline (3.8 g, 16.24 mmol) in MeOH (20 mL), as prepared in the last step, was treated with 10 wt. % Pd—C (754 mg) and NH4HCO2 (3 g). After 45 minutes the reaction was filtered through a pad of Celite and partitioned between EtOAc (100 mL) and NaHCO3 (satd) (100 mL). The organic phase was washed with brine (100 mL), dried over Na2SO4 and concentrated in vacuo to afford the product as a yellow viscous oil (2.7 g). 1H NMR (300 Hz, CDCl3) δ 9.0-8.98 (m, 1H), 8.22-8.19 (m, 1H), 8.05 (d, J=7.3 Hz, 1H), 7.93 (d, J=8.2 Hz, 1H), 7.60 (t, J=7.7 Hz, 1H), 7.49-7.45 (m, 1H), 3.82 (t, J=15.3 Hz, 2H); LC/MS (m/z) [M+1]+ 209.2 (calculated for C11H10F2N2, 208.21).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07550474B2
Source datasetuspto-grants-2009_06
ORD IDord-850b7b37109f48dcb3b2d7937d3648a0
Source noteuspto-grants-2009_06