Diels–Alder reactions between maleic anhydride and furan derivatives in supercritical CO2

2005 ◽  
Vol 7 (2) ◽  
pp. 105-110 ◽  
Author(s):  
Dáire J. Cott ◽  
Kirk J. Ziegler ◽  
Vincent P. Owens ◽  
Jeremy D. Glennon ◽  
Andrew E. Graham ◽  
...  
2003 ◽  
Vol 107 (43) ◽  
pp. 9249-9249 ◽  
Author(s):  
Evgeni M. Glebov ◽  
Larisa G. Krishtopa ◽  
Victor Stepanov ◽  
Lev N. Krasnoperov

Heterocycles ◽  
1978 ◽  
Vol 9 (12) ◽  
pp. 1759 ◽  
Author(s):  
Tetsuji Kametani ◽  
Toshio Suzuki ◽  
Akiko Tomino ◽  
Seiko Kagawa ◽  
Katsuo Unno ◽  
...  

2001 ◽  
Vol 105 (41) ◽  
pp. 9427-9435 ◽  
Author(s):  
Evgeni M. Glebov ◽  
Larisa G. Krishtopa ◽  
Victor Stepanov ◽  
Lev N. Krasnoperov

2002 ◽  
Vol 57 (6) ◽  
pp. 637-644 ◽  
Author(s):  
Krystyna Bogdanowicz-Szwed ◽  
Artur Budzowski

AbstractThe hetero-Diels-Alder reaction of 1-(2-furyl)-3-(dimethylamino)-2-propene-1-thione (diene) with maleic and fumaric acids, and β-nitrostyrenes yielded 3,4-dihydro-2H-thiopyran derivatives. Treatment of some of those cycloadducts with acetic acid caused elimination of dimethylamine yielding stable 2H-thiopyrans. Reaction of the diene with maleic anhydride furnished a cycloadduct which underwent spontaneous rearrangement to form an N,N-dimethylamide derivative. Cycloadditions of the diene to maleimide, N-phenylmaleimide, diethyl maleate, fumarate and butenolide, carried out in the presence of acetic anhydride,were followed by elimination of dimethylamine, afforded stable 2H-thiopyran derivatives.


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