ChemInform Abstract: A Novel One-Pot Synthesis of Isomeric Naphtho[1,2-d]isoxazole 2-Oxide and Naphtho[1,8-de][1,2]oxazine Ring Systems. A Case of Simultaneous o- and peri-Cyclization in Naphthalene.

ChemInform ◽  
2010 ◽  
Vol 31 (23) ◽  
pp. no-no
Author(s):  
Paraskevi Supsana ◽  
Petros G. Tsoungas ◽  
George Varvounis
Keyword(s):  
One Pot ◽  
Ring Systems ◽  
One Pot Synthesis ◽  
Oxazine Ring

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

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

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

scholarly journals One-pot synthesis of N-heterocycles and enimino carbocycles by tandem dehydrative coupling–reductive cyclization of halo-sec-amides and dehydrative cyclization of olefinic sec-amides

2017 ◽  
Vol 4 (3) ◽  
pp. 431-444 ◽  
Author(s):  
Pei-Qiang Huang ◽  
Ying-Hong Huang ◽  
Shu-Ren Wang
Keyword(s):  
Reductive Cyclization ◽  
One Pot ◽  
Ring Systems ◽  
One Pot Synthesis ◽  
The One

We report a versatile approach for the one-pot synthesis of substituted pyrrolidine, piperidine, indolizidine, and quinolizidine ring systems, and enimino carbocycles.

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

One-pot synthesis of 3,5-diaryl substituted-1,2,4-oxadiazoles using gem-dibromomethylarenes

2019 ◽  
Vol 97 (9) ◽  
pp. 690-696 ◽  
Author(s):  
Kambappa Vinaya ◽  
Ganganahalli K. Chandrashekara ◽  
Prasanna D. Shivaramu
Keyword(s):  
Benzoic Acid ◽  
Medicinal Chemistry ◽  
Heterocyclic Ring ◽  
Efficient Synthesis ◽  
One Pot ◽  
Ring Systems ◽  
One Pot Synthesis ◽  
Material Chemistry ◽  
Two Component

1,2,4-Oxadiazole is one of the most promising heterocyclic ring systems in medicinal chemistry. In the present paper, we report the method for an efficient one-pot synthesis of 3,5-diaryl substituted 1,2,4-oxadiazoles using a two-component reaction of gem-dibromomethylarenes with amidoximes in good yields. In this method, gem-dibromomethylarenes are used as benzoic acid equivalents for the efficient synthesis of aryl-substituted 1,2,4-oxadiazoles. It is anticipated that this methodology will have versatile applications in the practical syntheses of various molecules of both medicinal and material chemistry importance.

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