Results 51 to 60 of about 42,977 (261)
Molecules, 2019 The alkylation of a series of nitroindazole derivatives with 1,2-dibromoethane afforded the corresponding N-(2-bromoethyl)- and N-vinyl-nitro-1H-indazoles.
Mohammed Eddahmi +9 more
doaj +1 more source
Organic Letters, 2017 The double 1,3-dipolar cycloaddition of allenoates with nitrilimines has been achieved under mild reaction conditions, affording a variety of spirobidihydropyrazoles in moderate to excellent yields with excellent diastereoselectivities.
Honglei Liu +4 more
semanticscholar +1 more source
Synthesis and Application of Bioactive N‐Functionalized Aziridines
Angewandte Chemie, EarlyView.This review discusses modern synthetic methods for the preparation of aziridine‐containing small molecules, including biocatalytic, electrocatalytic, and photocatalytic strategies. We highlight the compatibility of various synthetic methods with control of the exocyclic N‐substituent.
Hao Tan +4 more
wiley +2 more sources
1,3-Dipolar Cycloadditions to Bicyclic Olefins. I. 1,3-Dipolar Cycloadditions to Norbornadienes [PDF]
Bulletin of the Chemical Society of Japan, 1977 Abstract The 1,3-dipolar cycloadditions of phenylglyoxylonitrile oxide, benzonitrile-N-phenylimine, or N-phenyl-C-p-nitrophenylnitrone to norbornadiene, 2,3-dicyanonorbornadiene, and 2,3-bis(methoxycarbonyl)norbornadiene give the endo-adducts, together with the exo-adducts.
Eiji Imoto +3 more
openaire +3 more sources
1,3 dipolar cycloaddition of münchnones: Factors behind the regio-selectivity
The Journal of Physical Chemistry A, 2022 The 1,3 dipolar cycloaddition reactions of münchnones and alkenes provide an expedite synthetic way to substituted pyrroles, an exceedingly important structural motif in the pharmaceutical and material science fields of research. The factors governing their regio-selectivity rationalization are not well understood.
Meylin Bocalandro +3 more
openaire +2 more sources
Beilstein Journal of Organic Chemistry, 2022 A reliable method for the synthesis of bis-spirocyclic derivatives of 3-azabicyclo[3.1.0]hexanes through the 1,3-dipolar cycloaddition (1,3-DC) reactions of cyclopropenes to the stable azomethine ylide – protonated form of Ruhemann's purple (PRP) has ...
Alexander S. Filatov +4 more
doaj +1 more source
Nature Chemistry, 2019 The UbiD enzyme plays an important role in bacterial ubiquinone (coenzyme Q) biosynthesis. It belongs to a family of reversible decarboxylases that interconvert propenoic or aromatic acids with the corresponding alkenes or aromatic compounds using a ...
S. Bailey +8 more
semanticscholar +1 more source
Synthesis of Heterocylic Compounds of Biological Interest from Carbohydrate Derivatives
Molecules, 2000 The synthesis of some isoxazolic compounds from carbohydrate derivatives is described. These products are obtained by 1,3-dipolar cycloaddition reaction and their functionalization leads to derivatives with potential biological activities.
M. F. Martinez Esperón +2 more
doaj +1 more source
PHOSPHONATED ISOXAZOLIDINYL NUCLEOSIDES, A NEW CLASS OF MODIFIED NUCLEOSIDES [PDF]
Euromediterranean Biomedical Journal, 2014 This review offers an overview of the synthesis of phosphonated isoxazolidinyl nucleosides, a new class of interesting and potentially antiviral/antitumor agents.
Salvatore Giofrè
doaj +1 more source
Büchwald-Hartwig reaction applied to synthesis of new luminescent liquid crystal triarylamines derived from isoxazoles [PDF]
, 2015 © 2015 Taylor & Francis Group, LLC. The present work describes the synthesis and characterization of novel series of triarylamines isoxazoles (TAA) addressed to the organic photovoltaic materials. Diarylisoxazoles were synthesized by sequential [3+2] 1,
Fernandes, T. H. M. +3 more
core +2 more sources