ChemInform Abstract: 1,4,5,8-Tetraazafulvalenes - A Convenient One-Pot Synthesis and Their Conversion to Fused Ring Systems.

ChemInform ◽  
2010 ◽  
Vol 28 (29) ◽  
pp. no-no
Author(s):  
C. KAEPPLINGER ◽  
R. BECKERT ◽  
W. GUENTHER ◽  
H. GOERLS
Keyword(s):  
One Pot ◽  
Ring Systems ◽  
One Pot Synthesis ◽  
Fused Ring

1,4,5,8-Tetraazafulvalenes – A Convenient One-Pot Synthesis and Their Conversion to Fused Ring Systems

1997 ◽  
Vol 1997 (3) ◽  
pp. 617-622 ◽  
Author(s):  
Christian Käpplinger ◽  
Rainer Beckert ◽  
Wolfgang Günther ◽  
Helmar Görls
Keyword(s):  
One Pot ◽  
Ring Systems ◽  
One Pot Synthesis ◽  
Fused Ring

Synthesis of Pyrazolofuropyrazine via One-Pot SNAr Reaction and Intramolecular Direct C–H Arylation

Synthesis ◽  
2018 ◽  
Vol 50 (07) ◽  
pp. 1493-1498 ◽  
Author(s):  
Shinichiro Fuse ◽  
Hiroyuki Nakamura ◽  
Megumi Inaba ◽  
Shinichi Sato ◽  
Manjusha Joshi
Keyword(s):  
Drug Discovery ◽  
Rapid Development ◽  
Ring System ◽  
Biologically Active ◽  
Drug Candidate ◽  
One Pot ◽  
Ring Systems ◽  
Drug Candidates ◽  
Fused Ring ◽  
Snar Reaction

Fused-ring systems containing heterocycles are attractive templates for drug discovery. Biologically active 6-5-5+6 fused-ring systems that possess heterocycles are available, but these require a relatively large number of synthetic steps for preparation. Therefore, pyrazolofuropyrazine was designed as a 6-5-5+6 ring system template that incorporates ready accessibility for drug discovery. Pyrazolofuropyrazines were successfully constructed in only a few steps via one-pot SNAr reaction/intramolecular C–H direct arylation. As a drug candidate, pyrazolofuropyrazine has earned a favorable LogP, although significant biological activity has yet to be established; the ready accessibility of pyrazolofuropyrazine template, however, offers an opportunity for the rapid development of promising new drug candidates.

A one-pot synthesis of nitrohydroxylated pyrrolidine and piperidine ring systems by tandem Michael-Henry reaction

1994 ◽  
Vol 35 (49) ◽  
pp. 9293-9296 ◽  
Author(s):  
Achille Barco ◽  
Simonetta Benetti ◽  
Carmela De Risi ◽  
Gian P. Pollini ◽  
Romeo Romagnoli ◽  
...  
Keyword(s):  
Piperidine Ring ◽  
Henry Reaction ◽  
One Pot ◽  
Ring Systems ◽  
One Pot Synthesis

A Facile Three-Component One-Pot Synthesis of Some Novel Tricyclic Hetero-Ring Systems

2015 ◽  
Vol 53 (6) ◽  
pp. 1892-1896 ◽  
Author(s):  
Sobhi M. Gomha ◽  
Fathy M. Abdelrazek
Keyword(s):  
One Pot ◽  
Ring Systems ◽  
One Pot Synthesis

scholarly journals Synthesis and characterization of some new heterocyclic compounds from α, β- unsaturated carbonyl system

2021 ◽  
pp. 56-63
Author(s):  
Muna A. Othman Salem ◽  
Hana A. A. Mageed ◽  
Huda S. Muftah ◽  
Reda F. El- Ezabi ◽  
Fayrouz A. Khaled
Keyword(s):  
Heterocyclic Compounds ◽  
Heterocyclic Ring ◽  
Solvent Free ◽  
Synthesis And Characterization ◽  
One Pot ◽  
Ring Systems ◽  
One Pot Synthesis ◽  
Solvent Free Conditions

An efficient and facile one pot synthesis of 3,4-dihydropyrimidinones (Belinelli compound) from furfural, acetylacetone and urea under solvent free conditions was performed, resulted in promising yield. These compounds reacted with benzaldehyde and furfural to give the corresponding chalcones. Chalcones are used to synthesize several derivatives like pyrazolines isoxazoles and pyrimidines having different heterocyclic ring systems. Keywords: Belinelli compounds; Chalcone; Pyrazolines isoxazoles; Pyrimidines

Synthesis of fused-ring aza-dipyrromethenes from aromatic nitriles

2018 ◽  
Vol 54 (64) ◽  
pp. 8893-8896 ◽  
Author(s):  
George R. Mckeown ◽  
Joseph G. Manion ◽  
Alan J. Lough ◽  
Dwight S. Seferos
Keyword(s):  
One Pot ◽  
Aromatic Nitriles ◽  
One Pot Synthesis ◽  
Fused Ring

Novel fused-ring aza-dipyrromethenes have been synthesized in a one-pot synthesis from readily-available aromatic nitriles.

ChemInform Abstract: A One-Pot Synthesis of Nitrohydroxylated Pyrrolidine and Piperidine Ring Systems by Tandem Michael-Henry Reaction.

ChemInform ◽  
2010 ◽  
Vol 26 (18) ◽  
pp. no-no
Author(s):  
A. BARCO ◽  
S. BENETTI ◽  
C. DE RISI ◽  
G. P. POLLINI ◽  
R. ROMAGNOLI ◽  
...  
Keyword(s):  
Piperidine Ring ◽  
Henry Reaction ◽  
One Pot ◽  
Ring Systems ◽  
One Pot Synthesis
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