134645-32-2

Upstream product

• 89-98-5 2-chloro-benzaldehyde 
• 78-93-3 butanone 

Downstream Products

• 87621-19-0 1-Chloro-2,6-bis-(2-chloro-phenyl)-3-methyl-piperidin-4-one 

Relevant academic research and scientific papers

Stereoselective synthesis and spectral studies of some benzotriazolylacetyl hydrazones of 3–alkyl–2,6–diarylpiperidin–4–ones

An effort to include biologically potent benzotriazole nucleus into piperidine ring is achieved through hydrazone formation. The characterization of the synthesized compounds was carried out using FT-IR, 1H &13C NMR, 1H–1H COSY, 1H–13C COSY, NOESY spectral techniques and GC-Mass spectrum. The spectral assignments were done without ambiguity using 2D-NMR techniques. The conformational preference of the piperidine ring deduced from the spectral studies is ‘chair’. The diastereotopic nature of the methylene protons/methyl groups present in the molecules is revealed clearly in their spectral pattern observed.

One-Pot Synthesis of Substituted Piperidinones and 3,4-Dihydropyrimidinones Using a Highly Active and Recyclable Supported Ionic Liquid Phase Organocatalyst

1-Ethyl-3-methylimidazolium ethyl sulfate was synthesized and its supported ionic liquid phase form was prepared and used as an organocatalyst for the synthesis of substituted piperidinones and 3,4-dihydropyrimidinones. The ionic liquid was characterized by 1H NMR, 13C NMR, and mass spectrometry. The catalyst is novel, stable, completely heterogeneous, and recyclable for several times and can be easily recovered by filtration. It was characterized with scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis, and energy-dispersive X-ray spectroscopy techniques. The workup procedures are very simple, and products were obtained in good-to-excellent yields with reasonable purities without the need for further chromatographic purification.

Chemoselective synthesis and spectral studies of N-thiocyanatoacetyl derivatives of 3-alkyl-2,6-diarylpiperidin-4-ones

A series of N–thiocyanatoacetyl derivatives of 3–alkyl–2,6–diarylpiperidin–4–ones has been synthesized by the reaction between the N–chloroacetyl derivatives of the respective piperidin–4–ones and the ambident thiocyanate nucleophile. The synthesized compounds have been characterized through FT–IR,1H,13C,1H–1H COSY,1H–13C COSY and NOESY spectra. The spectral data reveal the conformational priority of the six-membered heterocyclic ring.

Stereoselective synthesis, spectral and antimicrobial studies of some cyanoacetyl hydrazones of 3-alkyl-2,6-diarylpiperidin-4-ones

A series of novel cyanoacetyl hydrazones of 3-alkyl-2,6-diarylpiperidin-4-ones were synthesized stereoselectively and characterized by IR, Mass, 1H NMR, 13C NMR, 1H-1H COSY and 1H-13C COSY spectra. The stereochemistry of the synthesized compounds was established using NMR spectra. Antimicrobial screening of the synthesized compounds revealed their antibacterial and antifungal potencies. Growth inhibition of Enterobacter Aerogenes by compound 15 was found to be superior to the standard drug.

Synthesis, NMR spectral studies and antimicrobial evaluation of some 2-(benzothiazol-2-yl)-1-(alkyl-2r,6c-diarylpiperidin-4-ylidine)hydrazine derivatives

Substituted 2-(benzothiazol-2-yl)-1-(alkyl-2,6-diarylpiperidin-4-ylidine) hydrazines 10-17 were synthesized by the condensation of different 2r,6c-diarylpiperidin-4-ones 1-8 with 2-hydrazinobenzothiazole 9. All the synthesized compounds were investigated in solution and in the solid state by IR, 1H, 13C and 2D NMR spectral techniques. The structure-activity relationships were studied by the screening of the antimicrobial activity over a representative panel of bacterial and fungal strains using two-fold serial dilution method.

Conversion of piperidine-4-ones into [1,4]-diazepan-5-ones under microwave irradiation using a silica gel supported NaHSO4, catalyst

A rapid conversion of some 2,6-diarylpiperidin-4-ones into 2,7-diaryl-[1,4]-diazepan-5-ones in high yields has been developed involving treatment with hydroxylamine hydrochloride under microwave irradiation in the presence of a silica gel supported NaHSO4 catalyst.

Conformational Analysis and 13C NMR Spectra of Some 2,6-Diarylpiperidin-4-ones

The 13C NMR spectra of several methyl substituted 2,6-diaryl-4-piperidones (aryl=phenyl, o-chlorophenyl) have been measured.Substituent parameters for methyl and chloro groups have also been derived and are discussed in terms of their steric and electroni