Results 111 to 120 of about 29,518 (292)

KETONIC MANNICH BASES DERIVED FROM 1-(5-BROMOBENZOFURAN-2-YL)ETHAN-1-ONE

open access: yesScientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2020
1-(5-Bromobenzofuran-2-yl)ethan-1-one has been employed as substrate in a direct Mannich reaction with common secondary amines to generate several β-aminoketones hydrochlorides.
GHEORGHE ROMAN   +2 more
doaj  

Is the Food and Drug Administration Safe and Effective? [PDF]

open access: yes
In the United States, drug safety and efficacy are primarily regulated by the Food and Drug Administration (FDA) and the legal system, which gives manufacturers large incentives to produce safe drugs and provide proper warnings for side effects, since ...
Eric Sun, Tomas J. Philipson
core  

Studies on the Synthesis of Sulfanilamide Derivatives. III

open access: bronze, 1962
Noriyuki Okuda   +3 more
openalex   +2 more sources

SEMI-CONTINUOUS DETERMINATION OF NO2 IN PASSIVE DIFFUSERS BY FLOW INJECTION/UV-VIS SPECTROPHOTOMETRY

open access: yesAvances en Ciencias e Ingeniería, 2015
In this work the development of a semi-automated method by flow injection for spectrophotometric indirect determination of NO2, is described. The gas of environmental importance is captured through passive diffusers built in the laboratory, where it ...
Iliana M. de la Garza-Rodríguez   +5 more
doaj  

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