Results 1 to 10 of about 1,703,017 (234)

Aminoquinoline-Based Tridentate (NNN)-Copper Catalyst for C–N Bond-Forming Reactions from Aniline and Diazo Compounds [PDF]

Molecules
A new tridentate Cu2+ complex based on (E)-1-(pyridin-2-yl)-N-(quinolin-8-yl)methanimine (PQM) was generated and characterized to support the activation of diazo compounds for the formation of new C–N bonds.
Mohsen Teimouri, Selvam Raju, Edward Acheampong, Allison N. Schmittou, Bruno Donnadieu, David O. Wipf, Brad S. Pierce, Sean L. Stokes, Joseph P. Emerson   +8 more
doaj   +2 more sources

Catalytic asymmetric constructions of nitrogen, boron and carbon continuous stereogenic centers

Nature Communications
Precise construction of molecular chirality is a longstanding scientific challenge in synthetic chemistry. Although methods to enantioselectively assemble consecutive carbon stereocenters are abundant, courses to establish enriched continuous ...
Guan Zhang, Junyi Jia, Xuzhao Du, Bofan Feng, Kai Yang, Peiyuan Yu, Qiuling Song   +6 more
doaj   +1 more source

Mechanistic Study of the Light‐Initiated Generation of Free Diazoalkanes: Towards Photo‐Orthogonal Synthesis

ChemistryEurope
An in‐depth mechanistic study for the photogeneration of free diazoalkanes from N‐tosylhydrazone precursors by combining observations from synthesis with spectroscopic and theoretical methods is presented.
Ferdinand L. Pointner, Jonas Poll, Elina K. Taskinen, Vincent George, Tristan Ruff, Florian Rott, Gabriel Mayer, Niklas Gessner, Roger‐Jan Kutta, Burkhard König, Patrick Nuernberger, Christian Ochsenfeld, Regina de Vivie‐Riedle   +12 more
doaj   +1 more source

Recent advances in asymmetric [2+1] cycloaddition with α-cyano diazo compounds

Tetrahedron Chem
The asymmetric [2 + 1] cycloaddition of α-cyano diazo compounds has emerged as an efficient and versatile strategy for synthesizing cyano-substituted cyclopropanes, which are valuable scaffolds in medicinal chemistry, materials science, and natural ...
Shuicai Chen, Qiuzhan Huang, Xiaoyu Ren, Zhen Guo, Chengming Wang, Cong-Ying Zhou   +5 more
doaj   +1 more source

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

Original Reactivity of ?-Diazo-?- ketoesters Catalyzed by CpRu Complexes

CHIMIA, 2014
Using ?-diazo-?-ketoesters as reagents and combinations of CpRu fragments and diimine ligands as catalysts, a series of original transformations have been obtained that can be rationalized by the formation of metal carbenes and metal-bound ylide
Cecilia Tortoreto, Thierry Achard, Martina Austeri, Walid Zeghida, Jérôme Lacour   +4 more
doaj   +1 more source

OPTICALLY ACTIVE DIAZO COMPOUNDS. II

Journal of the American Chemical Society, 1922
n ...
Chiles, H. M., Noyes, W. A.
openaire   +2 more sources

Genome Mining for Diazo-Synthesis-Related Genes in Streptomyces sp. CS057 Unveiled the Cryptic Biosynthetic Gene Cluster crx for the Novel 3,4-AHBA-Derived Compound Crexazone 2

Biomolecules
Natural products play a crucial role in drug development, addressing the escalating microbial resistance to antibiotics and the treatment of emerging diseases. Progress in genome sequencing techniques, coupled with the development of bioinformatics tools
Laura Prado-Alonso, Suhui Ye, Ignacio Pérez-Victoria, Ignacio Montero, Pedro Riesco, Francisco Javier Ortiz-López, Jesús Martín, Carlos Olano, Fernando Reyes, Carmen Méndez   +9 more
doaj   +1 more source

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