Results 101 to 110 of about 1,584,934 (220)

Diazo compounds for the bioreversible esterification of proteins

Chemical Science, 2015
A diazo compound is shown to convert carboxylic acids to esters efficiently in an aqueous environment.
McGrath, Nicholas A., Andersen, Kristen A., Davis, Amy K. F., Lomax, Jo E., Raines, Ronald T.   +4 more
openaire   +3 more sources

Applications of catalytic C-N bond formation from diazo compounds [PDF]

, 2019
This thesis describes the development of a new reaction to form indolizines from pyridines, diazo compounds and alkynes, catalysed by commercially available iron catalysts.
Douglas, Timothy
core  

Synthesis and some conversions of diazo compounds

, 2022
Izraz diazo se nanaša na prisotnost dveh dušikovih atomov, pritrjenih na konec organske spojine. Diazo spojine poznamo v kemiji kot vsestranske substrate za številne kemične prevorbe, katere v diplomskem delu tudi opišem.
Kunavar, Nika
core  

Asymmetric Catalysis on the Intramolecular Cyclopropanation of α-Diazo-β-keto Sulfones

, 2016
This work describes the development of a highly enantioselective asymmetric catalysis on the intramolecular cyclopropanation of α-diazo-β-keto sulfones.
Takashi Sawada (237189), Masashi Takano (1837660), Takayuki Hagihara (2991498), Akinori Umino (1837654), Takehiko Matsumura (2991507), Masayuki Utsugi (1789357), Masahisa Nakada (1676500), Yuri Fujisawa (2991504), Masahiro Honma (2991501), Hideaki Watanabe (1837657)   +9 more
core   +2 more sources

Cascade transformation of 2-(diazoacetyl)-2H-azirines to 2-aroyl-3-hydroxy-1H-pyrroles via condensation with aromatic aldehydes

Beilstein Journal of Organic Chemistry
The Cs2CO3-induced condensation of 2-(diazoacetyl)-2H-azirines with aromatic aldehydes does not result in the formation of an azirinyl-substituted β-hydroxy-α-diazocarbonyl compound, but is accompanied by a tandem intramolecular cyclization involving the
Timur O. Zanakhov, Ekaterina E. Galenko, Mikhail S. Novikov, Alexander F. Khlebnikov   +3 more
doaj   +1 more source

Triphenyl{(E)-4-[4-(phenyldiazenyl)phenyl]-4H-1,2,4-triazol-1-yl}boron

Acta Crystallographica Section E, 2009
In the title compound, C32H26BN5 or [(C14H11N5)B(C6H5)3], the B atom is approximately tetrahedrally coordinated. The diazo unit is in a trans conformation, which is generally more stable than a cis one for aromatic azo compounds.
Daisuke Urakami, Katsuya Inoue, Shinya Hayami   +2 more
doaj   +1 more source

Overview of Photochemical Reactions for the Synthesis of Aza and Oxa‐Spirocyclic Compounds Under Visible Light Irradiation

Chemistry &Biodiversity, Volume 23, Issue 9, September 2026.
This review presents the visible‐light‐mediated photochemical reaction for the synthesis of aza, oxa, and aza–oxa spirocyclic compounds via photoinduced electron transfer (PET), hydrogen atom transfer (HAT), single‐electron transfer (SET), or energy transfer (EnT) pathways.
Annu Bhardwaj, Shivangi Jaiswal, Khushboo Bhardwaj, Swapnil Sharma, Jaya Dwivedi   +4 more
wiley   +1 more source

Mechanistic Dichotomy in Enantioselective Pd‐Catalyzed Alkylation of Pyrroles With Diazoesters

European Journal of Organic Chemistry, Volume 29, Issue 33, 1 September 2026.
Ligand‐controlled mechanistic divergence controls the Pd‐catalyzed asymmetric alkylation of pyrroles with diazoesters. While bipyridine ligands promote a conventional metal‐carbene pathway, bipyridine‐N,N′‐dioxide ligands redirect catalysis through electrophilic CH metalation before carbene transfer.
Vladimir Yu. Vaganov, Yasuaki Fukazawa, Svyatoslav M. Pechenkin, Vladimir S. Hein, Aleksandr E. Rubtsov, Andrei V. Malkov   +5 more
wiley   +1 more source

Isoxazolium N-ylides and 1-oxa-5-azahexa-1,3,5-trienes on the way from isoxazoles to 2H-1,3-oxazines

Beilstein Journal of Organic Chemistry, 2014
Theoretical and experimental studies of the reaction of isoxazoles with diazo compounds show that the formation of 2H-1,3-oxazines proceeds via the formation of (3Z)-1-oxa-5-azahexa-1,3,5-trienes which undergo a 6π-cyclization.
Alexander F. Khlebnikov, Mikhail S. Novikov, Yelizaveta G. Gorbunova, Ekaterina E. Galenko, Kirill I. Mikhailov, Viktoriia V. Pakalnis, Margarita S. Avdontceva   +6 more
doaj   +1 more source

Diazo compounds in continuous-flow technology

, 2015
Diazo compounds are very versatile reagents in organic chemistry and meet the challenge of selective assembly of structurally complex molecules. Their leaving group is dinitrogen; therefore, they are very clean and atom-efficient reagents. However, diazo
Wirth, Thomas, Müller, Simon T. R.
core   +1 more source