Results 61 to 70 of about 3,894 (208)

Ortho Arylation of N‐Aryl Amides and the Construction of Diagonal Tetraarylbenzenediamines and N‐Doped Fulminenes via BBr3‐Derived Dibromoboracycles

open access: yesChemistry – A European Journal, Volume 31, Issue 8, February 6, 2025.
We report the discovery of a boron‐driven ortho‐arylation reaction of N‐aryl amides and ureas. This novel method enables directed borylation of a wide range of substrates, leading to the synthesis of unique compounds such as N‐doped fulminene and diagonal tetraarylbenzenediamines.
Ganesh H. Shinde   +2 more
wiley   +1 more source

Visible Light-assisted Deconstruction/Refunctionalization of Strained and Unstrained N-Cycloalkylanilines [PDF]

open access: yes, 2022
The exploitation of ring strain as a driving force to facilitate chemical reactions is a well-appreciated principle in organic chemistry. Of the strained carbocycles frequently explored in this respect, cyclopropane ring systems have drawn considerably ...
Boateng, Elvis Duah
core   +1 more source

Diversified Fluoroalkylation of Alkenes Using Quaternary Fluoroalkyl Alcohols as the Fluoroalkylating Reagents

open access: yesAdvanced Science, Volume 12, Issue 6, February 10, 2025.
A universal photoredox‐catalyzed fluoroalkylation approach by utilizing new (fluoroalkyl)diaryl methanols as versatile fluoroalkylating reagents is developed. This protocol facilitates the synthesis of mono‐, di‐, tri‐, and even polyfluoroalkylation of a broad scope of alkenes.
Heng Lu   +3 more
wiley   +1 more source

Development of novel methodology for the synthesis of the angucycline tetrangulol, benzo[c]phenathridines and benzonaphthopyranones [PDF]

open access: yes, 2017
A thesis submitted to the Faculty of Science, University of the Witwatersrand Johannesburg. In fulfilment of the requirements for the Degree of Doctor of Philosophy.
Ngwira, Kennedy John Vijuviju
core  

Synthesis of aromatic heterocycles by Palladium(0)-catalyzed domino reactions and cyclization of hydrazone dianions [PDF]

open access: yes
This dissertation focuses on the development of new and convenient synthetic approaches for important or new aromatic heterocycles, namely chromeno[3,4-b]pyrrol-4(3H)-ones, indolo[1,2-f]phenanthridines, azaindolo[1,2-f]phenanthridines, naphtho-fused ...
Ngo, Thang Ngoc (gnd: 1123239991)
core   +1 more source

1,3-Dien-5-ynes: Versatile Building Blocks for the Synthesis of Carbo- and Heterocycles [PDF]

open access: yes, 2016
1,3-Dien-5-ynes have been extensively used as starting materials for the synthesis of a wide number of different carbo- and heterocycles. The aim of this review is to give an overview of their utility in organic synthesis, highlighting the variety of ...
Aguilar, Enrique   +3 more
core   +1 more source

Syntéza kationových helikálních N-heterocyklů [PDF]

open access: yes, 2022
Diploma thesis concerns synthesis of hitherto unknown cationic helical heterocyclic compounds by catalytic processes from simple building blocks. The focus was on the utilization of a catalytic C-C bond cleavage in biphenylene followed by annulation with
Hrubý, Samuel
core  

Mise en évidence d'une résistance aux trypanocides parmi des souches de Trypanosoma congolense récemment isolées au Burkina [PDF]

open access: yes, 1984
Dix-huit souches de T. congolense ont fait l'objet d'une épreuve de sensibilité à l'acétate de diminazène et à l'isométamidium chez la souris. L'intérêt et les limites de cette épreuve sont discutés. Les 13 souches de T.
Authié, Edith
core  

Trypanosoma brucei aquaglyceroporin 2 is a high-affinity transporter for pentamidine and melaminophenyl arsenic drugs and the main genetic determinant of resistance to these drugs [PDF]

open access: yes, 2017
Objectives Trypanosoma brucei drug transporters include the TbAT1/P2 aminopurine transporter and the high-affinity pentamidine transporter (HAPT1), but the genetic identity of HAPT1 is unknown. We recently reported that loss of T. brucei aquaglyceroporin
Aguinaga Andrés, David   +19 more
core  

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