Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1667475Generated: October 31, 2026

2-Chlorobenzylamine → HCID 24948531, compound

https://huagongshe.com/reaction/1667475

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-ChlorobenzylamineHCID 66648—
ReactantBinap, (A+-)-HCID 634876—
ReactantSodium t-butoxideHCID 23676156—
Reactant6-Bromo-4-chlorophthalazin-1(2H)-oneHCID 53308487—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
SolventEthyl AcetateHCID 8857—
SolventDimethylacetamideHCID 31374—
ProductHCID 24948531HCID 2494853111.3%

Reaction Steps

A mixture 6-bromo-4-chloro-2H-phthalazin-1-one (150 mg, 0.578 mmol), 2-chlorobenzylamine (0.078 mL, 0.644 mmol), Pd2(dba)3 (47 mg, 0.051 mmol), rac-BINAP (112 mg, 0.180 mmol) and NaOtBu (139 mg, 1.445 mmol) in DMA (6 mL) was heated at 80° C. for 2 h. The mixture was allowed to cool, diluted with EtOAc and washed with water. The organic layer was washed with sat.aq. NaHCO3, brine and dried (Na2SO4). Chromatography on silica (EtOAc/hexanes) afforded 4-chloro-6-(2-chloro-benzylamino)-2H-phthalazin-1-one (21 mg) as a beige solid, 1H (400 MHz, CDCl3) δ: 4.45 (s, 2H), 6.82 (d, 1H), 6.95 (dd, 1H), 7.14 (m, 2H), 7.30 (m, 2H), 8.00 (d, 1H), 11.20 (s, 1H) ppm; m/z (M+1) 319.93.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08044041B2
Source datasetuspto-grants-2011_10
ORD IDord-43c8ebac53734de1bb3de826b8eb79e1
Source noteuspto-grants-2011_10