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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1159288Generated: November 1, 2026

Diethylamine → 5-(4-chloro-phenyl)-N-((1R,2R)-2-hydroxy-cyclohexyl)-6-(3-methoxy-prop-1-ynyl)-nicotinamide

https://huagongshe.com/reaction/1159288

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethylamineHCID 8021—
ReactantTriphenylphosphineHCID 11776—
Reactant3-MethoxypropyneHCID 69393—
Reactant6-chloro-5-(4-chloro-phenyl)-N-((1R,2R)-2-hydroxy-cyclohexyl)-nicotinamideHCID 86619184—
CatalystCopper iodideHCID 83717—
SolventDimethylformamideHCID 6228—
Product5-(4-chloro-phenyl)-N-((1R,2R)-2-hydroxy-cyclohexyl)-6-(3-methoxy-prop-1-ynyl)-nicotinamideHCID 67426067—

Reaction Conditions

Temperature120 °C

Reaction Steps

To a mixture of 6-chloro-5-(4-chloro-phenyl)-N-((1R,2R)-2-hydroxy-cyclohexyl)-nicotinamide (450 mg), 52 mg bistriphenylphosphinpalladium dichloride, 14 mg copperiodide, 146 mg triphenylphosphine and methyl propargyl ether (0.12 mL) in 10 mL DMF is added diethylamine (1.9 μL). The mixture is heated in the microwave oven for 40 min at 120° C. The reaction mixture was cooled to room temperature and partitioned between 1 N hydrochloric acid and ethyl acetate. The organic phase was purified by gradient chromatography on silica gel with heptane:ethyl acetate to yield 0.13 g of the title compound as a light yellow solid, MS (ISP) 399.1 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07812028B2
Source datasetuspto-grants-2010_10
ORD IDord-a3031797ca104f92b25682db0e2dca73
Source noteuspto-grants-2010_10