Reversal of Chemoselectivity in Diels−Alder Reaction with α,β-Unsaturated Aldehydes and Ketones Catalyzed by Brønsted Acid or Lewis Acid

2005 ◽  
Vol 7 (7) ◽  
pp. 1251-1253 ◽  
Author(s):  
Daisuke Nakashima ◽  
Hisashi Yamamoto
Keyword(s):  
Lewis Acid ◽  
Alder Reaction ◽  
Diels Alder ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Unsaturated Aldehydes ◽  
Diels Alder Reaction ◽  
Brönsted Acid ◽  
Aldehydes And Ketones

Complexes containing a Lewis acid and Brønsted acid for the catalytic asymmetric Diels-Alder reaction

1995 ◽  
Vol 6 (6) ◽  
pp. 1301-1306 ◽  
Author(s):  
Varinder K. Aggarwal ◽  
Emma Anderson ◽  
Robert Giles ◽  
Anne Zaparucha
Keyword(s):  
Lewis Acid ◽  
Alder Reaction ◽  
Diels Alder ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Diels Alder Reaction ◽  
Brönsted Acid ◽  
Catalytic Asymmetric

scholarly journals Asymmetric Brønsted acid-catalyzed aza-Diels–Alder reaction of cyclic C-acylimines with cyclopentadiene

2012 ◽  
Vol 8 ◽  
pp. 1819-1824 ◽  
Author(s):  
Magnus Rueping ◽  
Sadiya Raja
Keyword(s):  
Alder Reaction ◽  
Optically Active ◽  
Diels Alder ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Reaction Conditions ◽  
Diels Alder Reaction ◽  
Brönsted Acid ◽  
Acid Catalyzed ◽  
Chiral Bronsted Acid

A new chiral Brønsted acid-catalyzed aza-Diels–Alder reaction of cyclic C-acylimines with cyclopentadiene has been developed. The reaction provides optically active aza-tetracycles in good yields with high diastereo- and enantioselectivities under mild reaction conditions.

Brønsted Acid Catalyzed Aza-Diels-Alder Reaction

Synfacts ◽  
2006 ◽  
Vol 2006 (12) ◽  
pp. 1280-1280 ◽  
Author(s):  
T. Akiyama ◽  
H. Morita ◽  
K. Fuchibe
Keyword(s):  
Alder Reaction ◽  
Diels Alder ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Diels Alder Reaction ◽  
Brönsted Acid ◽  
Acid Catalyzed
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