Synthesis and application of 3,4,7,8-tetrakis-exo-methylenecycloocta-1,5-diene as a versatile Diels–Alder diene: synthesis of V-shaped cyclooctatetraene fused acenes

2020 ◽  
Vol 18 (34) ◽  
pp. 6738-6744
Author(s):  
Savita Gadigennavar ◽  
Sethuraman Sankararaman
Keyword(s):  
Diels Alder ◽  
Diene Synthesis

Synthesis of 3,4,7,8-tetrakis-exo-methylenecycloocta-1,5-diene, has been reported. Diels-Alder reactions with this diene provides a shorter route for the synthesis of cyclooctatetraene fused with rigid aromatic wings.

Microwave-assisted Diels-Alder synthesis

2001 ◽  
Vol 79 (12) ◽  
pp. 1906-1909 ◽  
Author(s):  
Christopher K Jankowski ◽  
Gaëtan LeClair ◽  
Jacqueline MR Bélanger ◽  
Jocelyn RJ Paré ◽  
Marie-Rose VanCalsteren
Keyword(s):  
High Resolution ◽  
Microwave Synthesis ◽  
Alder Reaction ◽  
Diels Alder ◽  
Microwave Method ◽  
Diene Synthesis ◽  
Microwave Assisted ◽  
Diels Alder Reaction ◽  
Pyridine Carboxylate ◽  
Danishefsky's Diene

The synthesis of isoquinolinone carboxylates was performed using arecoline or its isomer N-methyl tetrahydro pyridine carboxylate with Danishefsky's diene via thermal or microwave assisted Diels-Alder reaction. The comparison of both condensation modes showed that the microwave method not only afforded higher yields of the adducts, but also lead to the formation of a new α,β-unsaturated pyridyl ketone. All structures were identified with the help of high resolution 2D NMR.Key words: Diels-Alder microwave assisted reaction, microwave synthesis, Michael, diene, isoquinoline carboxylate synthesis, Danishefsky diene synthesis, MAP Diels-Alder2.

Diels-Alder reactions of A cage-annulated cyclohexa-1,3-diene. Synthesis and crystal structure of A doubly-caged sterically-congested tetraol

Tetrahedron ◽  
1996 ◽  
Vol 52 (18) ◽  
pp. 6325-6338 ◽  
Author(s):  
Teh-Chang Chou ◽  
Pao-Chiung Hong ◽  
Yane-Fong Wu ◽  
Wen-Yean Chang ◽  
Cheng-Tung Lin ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Diels Alder ◽  
Diene Synthesis ◽  
Synthesis And Crystal Structure

The Diels-Alder Diene Synthesis.

1942 ◽  
Vol 31 (2) ◽  
pp. 319-523 ◽  
Author(s):  
James A. Norton
Keyword(s):  
Diels Alder ◽  
Diene Synthesis

THE REACTION OF CYANOGEN WITH 1,3-BUTADIENE

1947 ◽  
Vol 25b (3) ◽  
pp. 272-282 ◽  
Author(s):  
G. J. Janz ◽  
R. G. Ascah ◽  
A. G. Keenan
Keyword(s):  
Atmospheric Pressure ◽  
Main Product ◽  
Vapour Phase ◽  
Diels Alder ◽  
Diene Synthesis ◽  
Ether Solution ◽  
First Time

Cyanogen and butadiene have been found to react. The main product of the reaction was identified as 2-cyanopyridine. Some 2,2′-dipyridyl and a number of unidentified compounds were also found present in the product in small yields. No evidence for the presence of β-hydromucononitrile could be found. The reaction has been studied at atmospheric pressure in the vapour phase, and in ether solution, and at superatmospheric pressures in steel or glass bombs. In all cases the course of the reaction was essentially the same, 2-cyanopyridine being the main product. The formation of 2-cyanopyridine from butadiene and cyanogen is formulated as a Diels–Alder synthesis, in which the primary adduct undergoes a dehydrogenation to yield the final product. This is the first time to our knowledge that cyanogen has been reported as a dienophile in the diene synthesis.

Notes- Diels-Alder Diene Synthesis with 1,1,1-Trichloro-3-nitropropene

1960 ◽  
Vol 25 (2) ◽  
pp. 276-278 ◽  
Author(s):  
Howard Burkett ◽  
William Wright
Keyword(s):  
Diels Alder ◽  
Diene Synthesis

The Diels-Alder Reaction of 2-Ethenyl-1,4-Benzodioxin: A New and Simple Synthesis of Bisaryl Ethers

Synlett ◽  
1989 ◽  
Vol 1989 (01) ◽  
pp. 30-32
Author(s):  
Thomas V. Lee ◽  
Alistair J. Leigh ◽  
Christopher B. Chapleo
Keyword(s):  
Alder Reaction ◽  
Diels Alder ◽  
Simple Synthesis ◽  
Diels Alder Reaction

2-NITROBENZOFURAN AS DIENOPHILE IN DIELS-ALDER REACTIONS. A SIMPLE DIBENZOFURANS SYNTHESIS

2009 ◽  
Author(s):  
Pedro Mancini ◽  
Maria Kneeteman ◽  
Claudia Della Rosa
Keyword(s):  
Diels Alder
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