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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2277703Generated: November 3, 2026

Cesium carbonate → HCID 86685987, compound

https://huagongshe.com/reaction/2277703

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant1,2-Diaminocyclohexane, (+)-HCID 479307—
Reactant3-Bromopyridine-4-carboxaldehydeHCID 2762997—
Reactant6-Chloro-3,4-dihydroisoquinolin-1(2H)-oneHCID 19375637—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventWaterHCID 962—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 86685987HCID 86685987348.8%

Reaction Conditions

Temperature150 °C

Reaction Steps

CuI (190 mg, 1 mmol), (1S,2S)-cyclohexane-1,2-diamine (228 mg, 2 mmol) and Cs2CO3 (6.5 g, 20 mmol) were added to a solution of 6-chloro-3,4-dihydro-2H-isoquinolin-1-one (1.82 g, 10 mmol, intermediate A-2) and 5-bromo-pyridine-4-carbaldehyde (3.72 g, 20 mmol) in dioxane (15 mL). The reaction mixture was heated to 150° C. using microwave for 2.5 hours before it was poured into H2O (50 mL) and extracted with EtOAc (2×20 mL). The organic layers were washed with brine, dried over anhy. Na2SO4, filtered and concentrated in vacuo to give a crude product (2.0 g, 70%) as brown oil. MS: 287.0 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09133158B2
Source datasetuspto-grants-2015_09
ORD IDord-58b16153334a4180bd69e23a0e1eb83c
Source noteuspto-grants-2015_09