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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1376818Generated: October 27, 2026

3-(2-Methoxybenzylamino)-2-phenylpyridine → CP-99994

https://huagongshe.com/reaction/1376818

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-(2-Methoxybenzylamino)-2-phenylpyridineHCID 15232712—
CatalystPlatinum oxide (PtO)HCID 82844—
SolventAcetic AcidHCID 176—
ProductCP-99994HCID 531105758.8%

Reaction Steps

3-(2-Methoxybenzylamino)-2-phenylpyridine (25 mg) was dissolved in 3 mL of acetic acid. To this solution was added 3 mg of platinum oxide and the mixture was placed on a Parr apparatus (35-40 p.s.i. H2) for ca. 2.5 hours. During this period, three additional 2.5 mg portions of catalyst were added to the system. The mixture was filtered through Celite® which had been rinsed well with ethanol and the filtrate was concentrated with a rotary evaporator. The residue was partitioned between CH2Cl2 and saturated aqueous sodium bicarbonate, the layers were separated and the aqueous phase was extracted with three portions of CH2Cl2. The combined organic fractions were dried (Na2SO4) and concentrated to afford 15 mg of the title compound contaminated with a trace of 3-(2-methoxy-benzylamino)-2-phenylpyridine and a trace of material in which the 2-phenyl substituent had been reduced to a cyclohexyl moiety. The material prepared in this manner has spectral properties identical to those of the free base of the title compound of Example 1C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05663349
Source datasetuspto-grants-1997_09
ORD IDord-b1f9721ba5a6461b9dabad85500aad0e
Source noteuspto-grants-1997_09