Sodium hydride as a nucleophilic agent. Part 1. A new synthesis of 2,3′-biquinolyls

1992 ◽  
pp. 759-761 ◽  
Author(s):  
Alexander V. Aksenov ◽  
Igor V. Magedov ◽  
Yuri I. Smushkevich
Keyword(s):  
Sodium Hydride ◽  
Nucleophilic Agent ◽  
New Synthesis

ChemInform Abstract: Sodium Hydride as a Nucleophilic Agent. Part 1. A New Synthesis of 2,3′ -Biquinolyls

ChemInform ◽  
2010 ◽  
Vol 23 (31) ◽  
pp. no-no
Author(s):  
A. V. AKSENOV ◽  
I. V. MAGEDOV ◽  
YU. I. SMUSHKEVICH
Keyword(s):  
Sodium Hydride ◽  
Nucleophilic Agent ◽  
New Synthesis

Convenient new synthesis of 1,3-diaroylureas

1969 ◽  
Vol 47 (11) ◽  
pp. 2097-2099 ◽  
Author(s):  
James F. Wolfe ◽  
George B. Trimitsis
Keyword(s):  
Sodium Hydride ◽  
Aromatic Esters ◽  
New Synthesis ◽  
Excess Sodium

It has been found that symmetrical 1,3-diaroylureas can be prepared in good yields by allowing urea to react with aromatic esters and excess sodium hydride in refluxing 1,2-dimethoxyethane. Applications of this method to the synthesis of unsymmetrical 1,3-diaroylureas and substituted monoaroylureas are also described.

Tandem Carbon-Radical Peroxidation−Addition to Carbonyl Groups Reaction. A New Synthesis of Steroidal β-Peroxy Lactones

1996 ◽  
Vol 61 (26) ◽  
pp. 9635-9635
Author(s):  
Alicia Boto ◽  
Rosendo Hernández ◽  
Ernesto Suárez ◽  
Carmen Betancor ◽  
María S. Rodríguez
Keyword(s):  
Carbonyl Groups ◽  
New Synthesis

1,3-Selenaphospholes: A New Synthesis from 1,2,3-Selenadiazoles and Kinetically Stabilized Phosphaalkynes1

Synlett ◽  
1991 ◽  
Vol 1991 (04) ◽  
pp. 356-358 ◽  
Author(s):  
Bernd Burkhart ◽  
Steffen Krill ◽  
Yoshinori Okano ◽  
Wataru Ando ◽  
Manfred Regitz
Keyword(s):  
New Synthesis

A New Synthesis and Analysis of Silica Nanowire Periodically Wrapped by Nano-spheres

2016 ◽  
Vol 31 (5) ◽  
pp. 523
Author(s):  
MA Hong-Bing ◽  
BAI Hua ◽  
XUE Chen ◽  
TAO Peng-Fei ◽  
XU Qun-Feng ◽  
...  
Keyword(s):  
New Synthesis

New Synthesis of Isoindolo[2,1–b]isoquinolines. Preparation and Aqueous Bioavailability of its Silica Nanoparticles Hybrid System

2015 ◽  
Vol 19 (13) ◽  
pp. 1292-1300 ◽  
Author(s):  
Amelia Diaz ◽  
J. Manuel Lopez–Romero ◽  
Rafael Contreras-Caceres ◽  
Manuel Algarra ◽  
Rodrigo Rico ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Hybrid System ◽  
New Synthesis

A Short Synthesis of the Plant Alkaloid 4-Methyl-2,6-naphthyridine

2019 ◽  
Vol 16 (12) ◽  
pp. 931-934 ◽  
Author(s):  
Alexandra Kamlah ◽  
Franz Bracher
Keyword(s):  
Pyridine Ring ◽  
Cross Coupling ◽  
Antirrhinum Majus ◽  
New Synthesis ◽  
Short Synthesis ◽  
Regioselective Oxidation ◽  
Key Steps

: A new synthesis of the 2,6-naphthyridine alkaloid 4-methyl-2,6-naphthyridine from Antirrhinum majus has been developed. Key steps are a regioselective oxidation of 3-bromo-4,5- dimethylpyridine to the corresponding 4-formyl derivative, and the annulation of the second pyridine ring by Suzuki-Miyaura cross-coupling using (E)-2-ethoxyvinylboronic acid pinacol ester as a masked acetaldehyde equivalent. This protocol gives the alkaloid in four steps starting from commercially available 3,4-dimethylpyridine in 15% overall yield. This annulation protocol should be useful for the synthesis of other condensed pyridines as well.

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