Results 1 to 10 of about 29,837 (206)

EPR and pulsed ENDOR study of intermediates from reactions of aromatic azides with group 13 metal trichlorides [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2010
The reactions of group 13 metal trichlorides with aromatic azides were examined by CW EPR and pulsed ENDOR spectroscopies. Complex EPR spectra were obtained from reactions of aluminium, gallium and indium trichlorides with phenyl azides containing a ...
Giorgio Bencivenni   +4 more
doaj   +2 more sources

Azides in the Synthesis of Various Heterocycles

open access: yesMolecules, 2022
In this review, we focus on some interesting and recent examples of various applications of organic azides such as their intermolecular or intramolecular, under thermal, catalyzed, or noncatalyzed reaction conditions.
AbdElAziz A. Nayl   +8 more
doaj   +1 more source

SulfoxFluor-enabled deoxyazidation of alcohols with NaN3

open access: yesNature Communications, 2022
Azides are common moieties in chemical synthesis. Here the authors present a methodology to synthesize alkyl azides in one step from simple alcohols under mild conditions.
Junkai Guo   +4 more
doaj   +1 more source

Ortho-Phosphinoarenesulfonamide-Mediated Staudinger Reduction of Aryl and Alkyl Azides

open access: yesMolecules, 2022
Conventional Staudinger reductions of organic azides are sluggish with aryl or bulky aliphatic azides. In addition, Staudinger reduction usually requires a large excess of water to promote the decomposition of the aza-ylide intermediate into phosphine ...
Xingzhuo Li   +5 more
doaj   +1 more source

Kinetic resolution of cyclic benzylic azides enabled by site- and enantioselective C(sp3)–H oxidation

open access: yesNature Communications, 2022
Catalytic kinetic resolution of racemates is among the best ways to prepare enantiopure compounds, but this process is difficult with organic azides given the small size of the azido group.
Pengbo Ye   +5 more
doaj   +1 more source

Reactive & Efficient: Organic Azides as Cross-Linkers in Material Sciences

open access: yesMolecules, 2020
The exceptional reactivity of the azide group makes organic azides a highly versatile family of compounds in chemistry and the material sciences. One of the most prominent reactions employing organic azides is the regioselective copper(I)-catalyzed ...
Marvin Schock, Stefan Bräse
doaj   +1 more source

Synthesis of 1,2,3-triazoles using Grignard reactions through the protection of azides

open access: yesFrontiers in Chemistry, 2023
An efficient method to prepare organomagnesium intermediates having a protected azido group is reported. Protection of azido groups with di-(tert-butyl)(4-(dimethylamino)phenylphosphine (amphos) and following iodine–magnesium exchange realized the ...
Rina Namioka   +3 more
doaj   +1 more source

Taming tosyl azide: the development of a scalable continuous diazo transfer process [PDF]

open access: yes, 2016
Heat and shock sensitive tosyl azide was generated and used on demand in a telescoped diazo transfer process. Small quantities of tosyl azide were accessed in a one pot batch procedure using shelf stable, readily available reagents. For large scale diazo
Collins, SG   +5 more
core   +1 more source

Regioselective synthesis of heterocyclic N-sulfonyl amidines from heteroaromatic thioamides and sulfonyl azides

open access: yesBeilstein Journal of Organic Chemistry, 2020
N-Sulfonyl amidines bearing 1,2,3-triazole, isoxazole, thiazole and pyridine substituents were successfully prepared for the first time by reactions of primary, secondary and tertiary heterocyclic thioamides with alkyl- and arylsulfonyl azides.
Vladimir Ilkin   +7 more
doaj   +1 more source

Noncanonical Amino Acids in the Interrogation of Cellular Protein Synthesis [PDF]

open access: yes, 2011
Proteins in living cells can be made receptive to bioorthogonal chemistries through metabolic labeling with appropriately designed noncanonical amino acids (ncAAs).
Ngo, John T., Tirrell, David A.
core   +2 more sources

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