Results 31 to 40 of about 1,101 (192)
, 2019 A Pd-catalyzed ring-opening reaction of 2H-azirines with carboxylic acids was developed. This reaction undergoes nucleophilic addition between 2,3-diaryl-2H-azirines and carboxylic acids followed by C–N single-bond cleavage and a subsequent thermal ...
Xiao-Ju Si (6287384) +6 more
core +5 more sources
Continuous multistep synthesis of 2-(azidomethyl)oxazoles
Beilstein Journal of Organic Chemistry, 2018 An efficient three-step protocol was developed to produce 2-(azidomethyl)oxazoles from vinyl azides in a continuous-flow process. The general synthetic strategy involves a thermolysis of vinyl azides to generate azirines, which react with bromoacetyl ...
Thaís A. Rossa +4 more
doaj +1 more source
Simple Conversion of Enamines to 2H-Azirines and Their Rearrangements under Thermal Conditions
, 2016 A variety of substituted enamine derivatives were first found to be conveniently converted to the corresponding 2H-azirines mediated by phenyliodine (III) diacetate (PIDA).
Yunfei Du (1490683) +5 more
core +3 more sources
Chemical Metabolomics: Chemical Biology Tools for Advanced Metabolism Investigations
Angewandte Chemie, Volume 138, Issue 23, 1 June 2026.The human metabolism has been investigated for several millennia. The metabolome is known for a high complexity due to a large number of different metabolites that are present at different concentrations. Metabolomics has been developed as a field to investigate the entire human metabolome and to elucidate disease development mechanisms.
Alejandro Torregrosa‐Chinillach +4 more
wiley +2 more sources
Bortrifluorid-katalysierte Umsetzung von 2H-Azirinen und Vinylaziden mit Nitrilen
CHIMIA, 1975 The reaction of 2H-azirines or vinyl azides with nitriles in the presence of boron trifluoride etherate, to yield the corresponding imidazoles (see table), is described.
Heinz Bader, Hans-Jürgen Hansen
doaj +1 more source
A Novel Approach to Substituted 2H-Azirines
, 2016 2-(Benzotriazol-1-yl)-2H-azirines 4a−c, obtained by treatment of oximes 2a−c with tosyl chloride and aqueous KOH, were reacted with benzylmagnesium bromide or 4-methylbenzylmagnesium bromide in the presence of zinc chloride to give 2-benzyl-2H-azirines ...
Hongfang Yang (1370343) +3 more
core +1 more source
Molecules, 2009 An overview of the use of 2H-azirines, conjugated nitrosoalkenes and conjugated azoalkenes bearing phosphorus substituents in addition and cycloaddition reactions is presented, focused on strategies for the synthesis of aminophosphonate and ...
Américo Lemos
doaj +1 more source
Asymmetric reduction of azirines; a new route to chiral aziridines
, 2002 The first enantioselective reduction of aromatic 2H-azirines yields aziridines in up to 70% ee, using the aminoalcohol[RuCl2(p-cymene)](2) catalyzed asymmetric transfer hydrogenation reaction.
Anderson, P. G. +2 more
core +2 more sources
CHIMIA, 1976 3,5-Bisdimethylamino-isoxazoles II are obtained easily from 1,3-dichloro-trimethinecyanine I and a water solution of hydroxylamine. Besides precedented photo-isomerization of 4-substituted isoxazoles IIb,c to azirines IIIb,c near quantitative thermal ...
G.J. de Voghel +3 more
doaj +1 more source
Stabile Zink-Komplexe von 3-Amino-2H-azirinen
CHIMIA, 1978 3-Dimethylamino-2,2-dimethyl-2H-azirine (4a), which is known to react easily with Brönsted acids and electrophiles, forms a stable complex 5a with ZnBr2. In contrast to all other reactions of 4a, the three-membered ring in this complex is preserved. The
Kurt Dietliker +3 more
doaj +1 more source