Results 41 to 50 of about 23,915 (334)

First selective direct mono-arylation of piperidines using ruthenium-catalyzed C–H activation [PDF]

open access: yes, 2013
: A Ru-catalyzed mono-arylation in α-position of saturated cyclic amines is reported employing a C–H activation protocol. Substitution of the pyridine directing group with a bulky group, e.g., trifluoromethyl in the 3-position, proved to be crucial to ...
Karl Kirchner   +4 more
core   +1 more source

PIPERIDIN AS AN ANÆSTHETIC AND SEDATIVE [PDF]

open access: yesThe Journal of Nervous and Mental Disease, 1883
n ...
openaire   +3 more sources

Catalytic asymmetric synthesis of the alkaloid (+)-myrtine [PDF]

open access: yes, 2008
A new protocol for the asymmetric synthesis of trans-2,6-disubstituted-4-piperidones has been developed using a catalytic enantioselective conjugate addition reaction in combination with a diastereoselective lithiation–substitution sequence; an efficient
Adriaan J. Minnaard   +62 more
core   +1 more source

Study on Multi Drug Resistant Opportunistic Pathogens Obtained from Clinical Settings of Tamil Nadu for Developing Novel Alternative Therapeutics

open access: yesJournal of Pure and Applied Microbiology, 2019
Opportunistic pathogens prevail in the hospital environment, and utensils are the root cause of severe nosocomial infection. These pathogens exhibit high antibiotic resistance due to constant exposure to drug therapy.
Rajendran Venkatasubramani   +1 more
doaj   +1 more source

Crystal structure of 4-bromo-2-[(E)-N-(2,2,6,6-tetramethylpiperidin-4-yl)carboximidoyl]phenol dihydrate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title hydrate, C16H23BrN2O·2H2O, the organic molecule features a strong intramolecular O—H...N hydrogen bond. The piperidine ring, in addition, adopts a chair conformation with the exocyclic C—N bond in an equatorial orientation.
Joel T. Mague   +4 more
doaj   +1 more source

Intermolecular [3+3] ring expansion of aziridines to dehydropiperi-dines through the intermediacy of aziridinium ylides

open access: yesNature Communications, 2020
Traditional synthesis of stereodefined piperidines requires selective installation of functional groups that can lower efficiency and modularity. Here, the authors assemble stereochemically complex and highly substituted dehydropiperidines via an ...
Josephine Eshon   +6 more
doaj   +1 more source

Ammonium piperidine-1-carbodithioate [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2011
The title compound, NH(4) (+)·C(6)H(10)NS(2) (-), is composed of an ammonium cation and a piperidine-1-carbodithio-ate anion which exhibits positional disorder. The atoms of the ring have a structural disorder and they are divided into two sites, with occupancy factors of 0.584 and 0.426..
Maria Teresa do Prado Gambardella   +1 more
openaire   +4 more sources

Piperidin aus Pentamethylendiamin [PDF]

open access: yesBerichte der deutschen chemischen Gesellschaft, 1885
n ...
openaire   +3 more sources

Structures of piperazine, piperidine and morpholine [PDF]

open access: yesActa Crystallographica Section B Structural Science, 2004
The crystal structures of piperazine, piperidine and morpholine have been determined at 150 K. All three structures are characterized by the formation of NH...N hydrogen-bonded chains. In piperazine these are linked to form sheets, but the chains are shifted so that the molecules interleave. In morpholine there are in addition weak CH...O interactions.
Parkin, A, Oswald, I D H, Parsons, S
openaire   +5 more sources

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