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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 276158Generated: October 25, 2026

Benzaldehyde → 2-Aminopyridine

https://huagongshe.com/reaction/276158

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzaldehydeHCID 240—
ReactantBenzoic AcidHCID 243—
ReactantTolueneHCID 1140—
ReactantAnilineHCID 6115—
Reactant2-AminopyridineHCID 10439—
Reactant1-HexeneHCID 11597—
Product2-AminopyridineHCID 10439—
ProductHeptanophenoneHCID 74282—

Reaction Conditions

Temperature130 °C

Reaction Steps

Under the same reaction procedure and conditions as in Example 1 (benzaldehyde 0.5 mmol, aniline 0.3 mmol, bezoic acid 0.03 mmol, 1-hexene 2.5 mmol, toluene 0.87 mmol), various 2-aminopyridine derivatives 0.1 mmol as shown in the following table 3, were added to each 500 ml pressure reactor. The mixture was stirred at normal temperature for 2-3 minutes and then combined with Rh(PPh3)3Cl 0.01 mmol. While the reactor was stopped with a stopper, the reactants were heated at 130° C. for 1 hour with stirring. After completion of the reaction, gas chromatography was conducted to determine the yields of heptanophenone, products from various aminopyridine derivatives. The results are presented in Table 3, below.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06353139B1
Source datasetuspto-grants-2002_03
ORD IDord-fcceb4075c5c400f8b93bb53365b92fa
Source noteuspto-grants-2002_03