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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1669843Generated: October 30, 2026

Dimethylformamide → HCID 67335402, compound

https://huagongshe.com/reaction/1669843

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantHCID 67336156HCID 67336156—
CatalystZinc cyanide (Zn(CN)2)HCID 11186—
CatalystHCID 178418397HCID 178418397—
ProductHCID 67335402HCID 67335402—

Reaction Conditions

Temperature75 °C

Reaction Steps

A mixture of 0.75 g 4-(4-bromobenzyl)-3-cyclohexyl-1-[4-(trifluoromethoxy)phenyl]-1H-pyrazole from Step D Example 13, 110 mg zinc cyanide, and 90 mg tetrakis(triphenylphosphine)palladium(0) in 5 mL DMF was heated under nitrogen in a 75° C. oil bath over night. Evaporate most of DMF. The residue was purified on silica gel using 10˜40% EtOAc in hexanes to give the title compound as a colorless gel. 1H NMR (CDCl3, 500 MHz) δ 7.64˜7.65 (m, 2H), 7.62˜7.64 (m, 2H), 7.50 (s, 1H), 7.35 (d, J=8.2 Hz, 2H), 7.26˜7.29 (m, 2H), 3.94 (s, 2H), 2.58 (tt, J=3.1 & 11.9 Hz, 1H), 1.82˜1.87 (m, 4H), 1.72˜1.76 (m, 1H), 1.58˜1.67 (m, 2H), 1.28˜1.38 (m, 3H). LC-MS: 2.67 min. (M+H=426).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07989475B2
Source datasetuspto-grants-2011_08
ORD IDord-ddf100980f9f445cb2b584e78d3e106b
Source noteuspto-grants-2011_08