87621-16-7

Upstream product

• 5707-11-9 3,5-dimethyl-2,6-diphenylpiperidin-4-one 
• 87731-83-7 r-2,t-3,t-5,c-6-Tetraphenylpiperidin-4-one 

Downstream Products

• 5554-57-4 2,6-diphenyl-3-methyl-4-piperidone 
• 89757-55-1 1-Chloro-2,3,5,6-tetraphenyl-piperidin-4-one 
• 5707-11-9 3,5-dimethyl-2,6-diphenylpiperidin-4-one 

Relevant academic research and scientific papers

13C NMR Chemical Shifts, in some N-chloro-2,6-diarylpiperidin-4-ones

The 13C shifts in several N-chloro-2,6-diarylpiperidin-4-ones have been measured and compared with previously reported sifts in the corresponding 2,6-diarylpiperidones.The sifts of the α-carbons in these compounds move dowfield by 12-13 ppm, which can be attributed to the increased electronegativity of the nitrogen atoms.The changes in the chemical shifts of the β-carbons are minimal.Surprisingly, the absorptions of the carbonyl carbons move upfield by as much as 4.0 ppm.The magnitude of the shift in the resonance of the carbonyl carbon indicates the possibility of a transannular interaction between the nitrogen and the carbonyl group, which has not previously been observed in these systems.A preferred conformation for the aryl group in these compounds is also proposed.Key words 13C NMR N-chloro-2,6-diarylpiperidin-4-ones

Synthesis and PMR Spectral Analysis of Some N-Chloropiperidin-4-ones and N-chloroazabicyclononan-9-ones

Various substituted N-chloropiperidin-4-ones and N-chloroazabicyclononan-9-ones have been prepared and they are found to be good oxidising agents.PMR spectra of the substituted N-chloropiperidin-4-ones reveal that they exist in chair conformation.T

Conformational Analysis of Some N-Chloro-2,6-diphenyl-piperidin-4-ones by Kinetic and Equilibrium Methods

Confromational analysis of some substituted N-chloro-2,6-diphenylpiperidin-4-ones (I-IX) has been carried out by kinetic and equilibrium methods.The buttressing effect of alkyl substituents on vicinal phenyl groups has been observed during the kinetic and