Stereoselective Lewis Acid Mediated [1,3] Ring Contraction of 2,5-Dihydrooxepins as a Route to Polysubstituted Cyclopentenes

2005 ◽  
Vol 117 (21) ◽  
pp. 3328-3331 ◽  
Author(s):  
Christopher G. Nasveschuk ◽  
Tomislav Rovis
Keyword(s):  
Lewis Acid ◽  
Ring Contraction

Lewis Acid-Promoted Favorskii-Type Ring Contraction of Some Cyclic α-Bromo Ketones and Their Acetals

Synthesis ◽  
1987 ◽  
Vol 1987 (09) ◽  
pp. 806-809 ◽  
Author(s):  
Swaraj B. Maiti ◽  
S. R. Ray Chaudhuri ◽  
Amareshwar Chatterjee
Keyword(s):  
Lewis Acid ◽  
Ring Contraction

Lewis acid-catalysed nucleophilic opening of a bicyclic hemiaminal followed by ring contraction: Access to functionalized L-idonojirimycin derivatives

2019 ◽  
Vol 472 ◽  
pp. 65-71 ◽  
Author(s):  
N. Auberger ◽  
B. Onfroy ◽  
N. Fontelle ◽  
Q. Foucart ◽  
Y. Blériot
Keyword(s):  
Lewis Acid ◽  
Ring Contraction
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