Knoevenagel condensation of cyclic ketones with benzoylacetonitrile and N,N′-dimethylbarbituric acid. Application of sterically hindered condensation products in the synthesis of spiro and dispiropyrans by hetero-Diels–Alder reactions

Tetrahedron ◽  
2011 ◽  
Vol 67 (7) ◽  
pp. 1422-1431 ◽  
Author(s):  
Aleksandra Pałasz ◽  
Tadeusz Pałasz
Keyword(s):  
Knoevenagel Condensation ◽  
Diels Alder ◽  
Cyclic Ketones ◽  
Condensation Products ◽  
Sterically Hindered

Total syntheses of ericifolione and analogues via a biomimetic inverse-electron-demand Diels-Alder reaction

2021 ◽  
Author(s):  
Tingting Zhou ◽  
Anquan Zheng ◽  
Luqiong Huo ◽  
Changgeng Li ◽  
Haibo Tan ◽  
...  
Keyword(s):  
Sodium Acetate ◽  
Alder Reaction ◽  
Diels Alder ◽  
Total Syntheses ◽  
Inverse Electron Demand ◽  
Diels Alder Reaction ◽  
Sterically Hindered ◽  
Electron Demand

Driven by bioinspiration and appreciation of the structure of ericifolione, a biomimetic tautomerization/intermolecular inverse-electron-demand hetero Diels-Alder reaction cascade sequence promoted by sodium acetate to rapidly construct sterically hindered dihydropyran scaffolds...

Chiral Bimetallic Catalysts Derived from Chiral Metal Phosphates: Enantioselective Three-Component Asymmetric Aza-Diels–Alder Reactions of Cyclic Ketones

2015 ◽  
Vol 80 (16) ◽  
pp. 7984-7993 ◽  
Author(s):  
Yongming Deng ◽  
Chamini V. Karunaratne ◽  
Erika Csatary ◽  
David L. Tierney ◽  
Kraig Wheeler ◽  
...  
Keyword(s):  
Bimetallic Catalysts ◽  
Diels Alder ◽  
Cyclic Ketones ◽  
Metal Phosphates
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