Results 61 to 70 of about 1,703,017 (234)

Pyridine Group Assisted Addition of Diazo-Compounds to Imines in the 3‑CC Reaction of 2‑Aminopyridines, Aldehydes, and Diazo-Compounds

open access: yes, 2016
A novel three-component coupling (3-CC) reaction of 2-aminoazines, aromatic aldehydes, and diazo-compounds producing polyfunctional β-amino-α-diazo-compounds has been developed.
Victoria Helan (1991983)   +3 more
core   +1 more source

Diazo Transfer Reactions to 1,3-Dicarbonyl Compounds with Tosyl azide

open access: yes, 2011
International audienceA practical protocol for the large-scale preparation of 2-diazo-1,3-dicarbonyl compounds is described by diazo-transfer reactions with tosyl azide followed by efficient chromatographic purifications on silica gel and/or ...
Marc Presset   +7 more
core   +1 more source

Facile and diastereoselective arylation of the privileged 1,4-dihydroisoquinolin-3(2H)-one scaffold

open access: yesBeilstein Journal of Organic Chemistry, 2022
A practically convenient and streamlined protocol for the trans-diastereoselective introduction of an aryl substituent at position 4 of the 1,4-dihydroisoquinol-3-one (1,4-DHIQ) scaffold is presented.
Dmitry Dar’in   +3 more
doaj   +1 more source

Recent Advances in the Synthesis of Aromatic Azo Compounds

open access: yesMolecules, 2023
Aromatic azo compounds have -N=N- double bonds as well as a larger π electron conjugation system, which endows aromatic azo compounds with wide applications in the fields of functional materials.
Meng-Yun Zhao   +2 more
doaj   +1 more source

Development of Novel Methodology for the in situ Preparation of Halodiazo Compounds and Investigation of Reactivities of α-Onium Diazo Compounds

open access: yes, 2014
Diazo compounds have great synthetic potential as versatile reagents in organic synthesis. The formation of Rh(II) carbenoids from diazo compounds allows the selective formation of C-C and C-heteroatom bonds and the introduction of functionality into ...
Schnaars, Christian
core   +1 more source

Access to cyclopropanes with geminal trifluoromethyl and difluoromethylphosphonate groups

open access: yesBeilstein Journal of Organic Chemistry, 2023
A synthetic route to the bench-stable fluorinated masked carbene reagent diethyl 2-diazo-1,1,3,3,3-pentafluoropropylphosphonate, bearing a trifluoromethyl and a difluoromethyl group is reported for the first time.
Ita Hajdin   +5 more
doaj   +1 more source

Aza‐Büchner–Curtius–Schlotterbeck Reaction Enables Selective Construction of Quaternary Carbon Centers

open access: yesAngewandte Chemie International Edition, EarlyView.
We introduce the Aza‐Büchner–Curtius–Schlotterbeck (ABCS) reaction: A mild, catalyst‐free method for homologating aryl imines. Diverging from the traditional BCS mechanism, the diazo intermediate undergoes selective C─C insertion to form an all‐carbon quaternary center.
Simon O. Angerer   +6 more
wiley   +1 more source

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