Results 231 to 240 of about 20,876 (282)

Difluoro-substituted bicyclo[1.1.1]pentanes for medicinal chemistry: design, synthesis and characterization.

Journal of Organic Chemistry, 2019
A practical synthetic approach to the difluoro-substituted bicyclo[1.1.1]pentanes was developed. The key step was an addition of difluorocarbene (:CF2) to electron-rich bicyclo[1.1.0]butanes by CF3TMS/NaI system.
Roman M. Bychek, Valeriia Hutskalova, Yuliya P. Bas, O. Zaporozhets, S. Zozulya, Vadym V. Levterov, Pavel K. Mykhailiuk   +6 more
semanticscholar   +1 more source

Pentane-1,5-diaminium dibromide

Acta Crystallographica Section C Crystal Structure Communications, 2013
The crystal structure of the title salt, C5H16N22+·2Br−, withZ= 12 and more unusuallyZ′ = 3, forms part of a small group of crystal structures in the Cambridge Structural Database that are ammonium bromide salts. One of the diaminium cation chains in the asymmetric unit exhibits positional disorder, which was modelled using a suitable disorder model ...
openaire   +2 more sources

Synthesis of selenoether and thioether functionalized bicyclo[1.1.1]pentanes

, 2020
Bicyclo[1.1.1]pentane is widely recognized as the bioisostere for aryl, tert-butyl, and internal alkynes. Herein we report an efficient and practical method for the preparation of selenoether and thioether functionalized bicyclo[1.1.1]pentanes from ...
Zhen Wu, Yaohui Xu, Xinxin Wu, Chen Zhu
semanticscholar   +1 more source

Pentane production by peanut lipoxygenase

Lipids, 1974
AbstractPentane and hexanal were the major volatile end‐products of a peanut lipoxygenase and linoleic acid model system and were produced by both crude and purified enzyme preparations. The enzyme system did not require an anerobic condition for the production of pentane and hexanal, thus distinguishing it from other reported systems.
H E, Pattee, J A, Singleton, E B, Johns
openaire   +2 more sources

Bis(pentane‐1,5‐diammonium)decaiodotriplumbate(II).

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
David G, Billing, Andreas, Lemmerer
openaire   +2 more sources

Die Photochlorierung des Pentans

Journal für Praktische Chemie, 1977
AbstractDie Kinetik der Pentanchlorierung wurde untersucht und der Konzentrationsverlauf der Mono‐ und Dichlorpentane am Analogrechner nachgebildet. Aus den erhaltenen Geschwindigkeitskonstanten wurden CH‐Reaktivitäten ermittelt. Die Struktur der auftretenden Diastereomeren wird diskutiert.
D. Friesecke, W. Höbold, J. Körnig, H. Schmidt   +3 more
openaire   +1 more source

Liquid-liquid equilibrium of sulfolane-benzene-pentane and sulfolane-toluene-pentane

Industrial & Engineering Chemistry Research, 1989
Les equilibres ternaires des deux systemes sont obtenus a 17,25 et 50 o C.
George W. Cassell, Nilufer Dural, Anthony L. Hines   +2 more
openaire   +1 more source

Density dependence of self-diffusion in liquid pentanes and pentane mixtures

Molecular Physics, 1996
Self-diffusion coefficients of cyclopentane and 2-methylbutane (isopentane) were measured in the pure liquids and in an equimolar mixture of the compounds by the Fourier transform NMR spin–echo tec...
openaire   +1 more source

n-Pentane

2023
Philip H. Howard, Edward M. Michalenko, William M. Meylan, Dipak K. Basu, Julie A. Beauman, Gloria W. Sage, William F. Jarvis, D. Anthony Gray   +7 more
openaire   +1 more source

Hexanfreies Pentan

Nachrichten aus Chemie, Technik und Laboratorium, 1994
H.-E. Heyke, G. Matzke
openaire   +1 more source