Results 51 to 60 of about 7,268 (257)

Simple preparation of new N-aryl-N-(3-indolmethyl) acetamides and their spectroscopic analysis

open access: yesUniversitas Scientiarum, 2009
To prepare new indolic molecules and characterize them by spectroscopic methods. Materials and methods: All reagentswere purchased from Aldrich, commercial grade.
José A. Henao   +4 more
doaj  

N-(4-Isopropoxyphenyl)acetamide [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2009
In the mol-ecule of the title compound, C(11)H(15)NO(2), the planar acetamide unit [maximum deviation of 0.0014 (6) Å] is oriented at a dihedral angle of 19.68 (4)° with respect to the aromatic ring. An intra-molecular C-H⋯O inter-action results in the formation of a six-membered ring. In the crystal structure, inter-molecular N-H⋯O hydrogen bonds link
Hai-Bo Wang   +4 more
openaire   +3 more sources

Bis-pyrimidine acetamides: design, synthesis and biological evaluation

open access: yesChemistry Central Journal, 2017
Background In the past few years, increased resistance of microorganisms towards antimicrobial agents become a serious health problem, so there is a need for the discovery of new antimicrobial agents.
Sanjiv Kumar   +5 more
doaj   +1 more source

Effect of vasopressin 1b receptor blockade on the hypothalamic-pituitary-adrenal response of chronically stressed rats to a heterotypic stressor [PDF]

open access: yes, 2009
Exposure to chronic restraint (CR) modifies the hypothalamic–pituitary–adrenal (HPA) axis response to subsequent acute stressors with adaptation of the response to a homotypic and sensitization of the response to a heterotypic stressor. Since vasopressin
Craighead, Mark   +5 more
core   +1 more source

Intramolecular Carbene C-H Insertion Reactions of 2-Diazo-2-sulfamoylacetamides

open access: yesMolecules, 2019
The intramolecular C-H insertions of carbenes derived from 2-diazo-2-sulfamoylacetamides were studied. 2-Diazo-2-sulfamoylacetamides were first prepared from chloroacetyl chloride and secondary amines through acylation followed by sequential treatments ...
Chuqiang Que   +4 more
doaj   +1 more source

Stereodivergent Construction of Tertiary Fluorides in Vicinal Stereogenic Pairs by Allylic Substitution with Iridium and Copper Catalysts. [PDF]

open access: yes, 2019
Although much effort has been spent on the enantioselective synthesis of tertiary alkyl fluorides, the synthesis of compounds containing such a stereogenic center within an array of stereocenters, particularly two vicinal ones, remains a synthetic ...
Hartwig, John F   +2 more
core  

Advanced Separation Technologies for Light Olefin and Alkane (C2‐C4): Recent Advances in Extraction, Adsorption, and Membrane Separation

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT With the rapid development of the petrochemical industry, efficient separation technology for olefins and alkanes with the same number of carbon atoms has become an important research topic to enhance the efficiency of petroleum resource utilization and optimize product quality.
Shasha Zhao, Kang Zhao, Zhen Liu
wiley   +1 more source

Synthesis and Antimicrobial Activity of Some Novel Substituted Piperazinyl-quinazolin-3(4H)-ones

open access: yesE-Journal of Chemistry, 2008
Several substituted-quinazolin-3(4H)-ones were synthesized by condensation of 2-chloro-N-(4-oxo-substituted-quinazolin-3(4H)-yl)-acetamides with various substituted piperazines through single step reaction. Elemental analysis, IR, 1HNMR and mass spectral
N. M. Raghavendra   +2 more
doaj   +1 more source

A Novel Green Method for Producing Medical‐Grade Chitosan From Loligo plei Squid Pens

open access: yesJournal of Applied Polymer Science, EarlyView.
This work demonstrates a sustainable and simplified process for the production of medical‐grade chitosan from the feathers of the squid Loligo plei, employing mild chemical treatments to preserve the integrity of the polymer while achieving high purity and performance.
Talita Martins   +7 more
wiley   +1 more source

2-(4-Iodophenoxy)acetamide [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2011
The mol-ecule of the title compound, C(8)H(8)INO(2), amide-typical resonance shortens the nominal C-N single bond to 1.322 (7) Å. In the crystal, hydrogen bonds involving both nitro-gen-bound H atoms as well as C-H⋯O contacts connect the mol-ecules into double layers approximately perpendicular to the crystallographic b axis.
Richard Betz   +2 more
openaire   +3 more sources

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