Results 71 to 80 of about 52,734 (205)

Phenyl piperidine-1-carboxylate [PDF]

, 2009
In the title compound, C12H15NO2, the dihedral angle between the benzene ring and the basal plane of the piperidine ring (which is in a chair conformation) is 49.55 (8)°.
Naeem Ahmad, Durre Shahwar, Muhammad Akmal Khan, Saif Ullah, M. Nawaz Tahir   +4 more
core   +1 more source

Alpha-diazocarbonyl-piperidine derivatives : chemoselective rhodium catalysed transformation

, 2012
Several natural compounds or compounds of biological interest contain the piperidine nucleus that, in many cases, is inserted in complex structures or simply condensed with other rings.
M.L. Gelmi, A. Bonetti, S. Pellegrino
core   +2 more sources

Comparison of In Silico AChE Inhibitory Potentials of Some Donepezil Analogues

Pharmata
Cholinesterases are important in ensuring hemostasis in our body. Excessive increase in cholinesterase function causes various cholinergic dysfunctions. Alzheimer's is a disease characterized by loss of cholinergic activity, which is especially common in
Mehmet Koca
doaj  

Extended Piperidine–Piperidinone Protein Interface Mimics

, 2015
Minimalist structures, H and I, were designed as protein interface mimics. Attributes of these chemotypes are (i) greater rigidity than conventional peptides, (ii) chiral and nonplanar heterocyclic backbones that are less prone to the hydrophobic ...
Kevin Burgess (531564), Dongyue Xin (1316298), Arjun Raghuraman (1272819)   +2 more
core   +1 more source

Investigating the preparation of oxime derivatives of azacrown ethers containing piperidine-4-one heterocycles under microwave irradiation

Vietnam Journal of Science, Technology and Engineering
The use of multi-component reactions to simultaneously synthesise crown ethers and nitrogen-containing heterocycles is a synthetic approach that has attracted significant interest. With nitrogen heterocycles embedded in their structures, azacrown ethers
Tung H. To, Hieu D. Nguyen
doaj   +1 more source

Enantiopure N-Boc Piperidine-2-ethanol for the Synthesis of(+)- and (-)-Dumetorine and (+)- and (-)-Epidihydropinidine

, 2009
The convenient synthesis of both enantiomers of the piperidine alkaloids such as dumetorine and epidihydropinidine is described. Pure enantiomers of 2-(2-hydroxy-ethyl)-piperidine-1-carboxylic acid tert-butyl ester are used as a common starting material.
RIVA, ELENA, B. Checa, G. Grieco, F. Cavallo, D. Passarella, D. Comi, S. Riva, F. Arioli, B. Danieli   +8 more
core   +1 more source

1-Formyl-c-3,t-3-dimethyl-r-2,c-6-diphenylpiperidin-4-one

Acta Crystallographica Section E, 2012
In the title compound, C20H21NO2, the piperidine ring adopts a distorted boat conformation. The phenyl rings substituted at the 2- and 6-positions of the piperidine ring subtend angles of 86.0 (1) and 67.3 (1)° with the mean ...
S. Ponnuswamy, P. Ramesh, P. Sakthivel, K. Ravichandran, M. N. Ponnuswamy   +4 more
doaj   +1 more source

Piperidine-1-carboximidamide [PDF]

Acta Crystallographica Section E Structure Reports Online, 2012
In the title compound, C(6)H(13)N(3), the C=N and C-N bond lengths in the CN(3) unit are 1.3090 (17), and 1.3640 (17) (C-NH(2)) and 1.3773 (16) Å, indicating double- and single-bond character, respectively. The N-C-N angles are 116.82 (12), 119.08 (11) and 124.09 (11)°, showing a deviation of the CN(3) plane from an ideal trigonal-planar geometry.
openaire   +2 more sources

Mechanism of hydrodenitrogenation adsorption of piperidine on reduced molybdenum catalysts. Tenth quarterly report, January 1--March 31, 1992

, 1992
Diffuse reflectance ir spectroscopy of adsorbed piperidine was done to study the interaction of highly basic cyclic amines with OH on various surfaces.
Miranda, P.
core   +1 more source

A convenient large-scale chiral synthesis of protected 2-substituted 4-oxo-piperidine derivatives

, 2002
A convenient large-scale chiral synthesis of protected 2-substituted-4-oxo-piperidine derivatives is described. Hetero Diels-Alder reaction between trifluoroacetic acid-boron trifluoride activated (1-phenyl-ethylimino)acetic acid ethyl ester and 2 ...
Paul Kilburn, John, Holsworth, Daniel D., Ge, Yu, Lau, Jesper F., Frydenvang, Karla, Judge, Luke M., Kruse Hansen, Thomas, Uyeda, Roy T., Sune Andersen, Henrik   +8 more
core   +1 more source