Results 41 to 50 of about 73,246 (246)

Transient Protection of Organic Azides from Click Reactions with Alkynes by Phosphazide Formation.

open access: yesOrganic Letters, 2018
A method for protecting organic azides from click reactions with alkynes is reported. Treatment of azides with Amphos affords phosphazides, which are stable under click reaction conditions and are easily converted back to azides by treatment with ...
Tomohiro Meguro   +4 more
semanticscholar   +1 more source

Chemo- and Stereoselective Transition-Metal-Free Amination of Amides with Azides

open access: yesJournal of the American Chemical Society, 2016
The synthesis of α-amino carbonyl/carboxyl compounds is a contemporary challenge in organic synthesis. Herein, we present a stereoselective α-amination of amides employing simple azides that proceeds under mild conditions with release of nitrogen gas ...
V. Tona   +5 more
semanticscholar   +1 more source

An Efficient Approach to Phosphorylated Isoindoline Fused with Triazoles via Zn-Catalyzed Cascade Cyclization of 2–Propynol Benzyl Azides and Diarylphosphine Oxides

open access: yesMolecules, 2019
An efficient approach for the synthesis of phosphorylated isoindoline fused with triazoles via Zn(OTf)2-catalyzed cascade cyclization of easily prepared ortho−propynol benzyl azides and diarylphosphine oxides is developed.
Tao Yang   +5 more
doaj   +1 more source

Screen-printed Microsensors Using Polyoctyl-thiophene (POT) Conducting Polymer As Solid Transducer for Ultratrace Determination of Azides

open access: yesMolecules, 2019
Two novel all-solid-state potentiometric sensors for the determination of azide ion are prepared and described here for the first time. The sensors are based on the use of iron II-phthalocyanine (Fe-PC) neutral carrier complex and nitron-azide ion-pair ...
Ahmed Galal Eldin   +3 more
doaj   +1 more source

Copper(I)-Catalyzed [ 3+ 2] Cycloaddition of 3-Azidoquinoline-2,4(1H,3H)-diones with Terminal Alkynes

open access: yesMolecules, 2011
3-Azidoquinoline-2,4(1H,3H)-diones 1, which are readily available from 4-hydroxyquinolin-2(1H)-ones 4 via 3-chloroquinoline-2,4(1H,3H)-diones 5, afford, in copper(I)-catalyzed [3 + 2] cycloaddition reaction with terminal acetylenes, 1,4-disubstituted 1,2,
Stanislav Kafka   +5 more
doaj   +1 more source

POLARIZATION PHENOMENA IN SILVER AZIDE

open access: yesВестник Кемеровского государственного университета, 2013
The paper continues the cycle of works devoted to clarification of the nature of oscillatory processes in azides of heavy metals proceeding a long time after energetic influence.
V. I. Krasheninin   +4 more
doaj  

Development of a Telescoped Flow Process for the Safe and Effective Generation of Propargylic Amines

open access: yesMolecules, 2019
Propargylic amines are important multifunctional building blocks that are frequently exploited in the synthesis of privileged heterocyclic entities. Herein we report on a novel flow process that achieves the safe and effective on-demand synthesis of ...
Kian Donnelly   +2 more
doaj   +1 more source

Iron Corrole‐Catalyzed Intramolecular Amination Reactions of Alkyl Azides. Spectroscopic Characterization and Reactivity of [FeV(Cor)(NAd)]

open access: yesAdvanced Science
As nitrogen analogues of iron‐oxo species, high‐valent iron‐imido species have attracted great interest in the past decades. FeV‐alkylimido species are generally considered to be key reaction intermediates in Fe(III)‐catalyzed C(sp3)─H bond aminations of
Tingjie You   +11 more
doaj   +1 more source

Home - About - Disclaimer - Privacy