Lewis Acid-Promoted Cyclization Reactions of Alkenyl Ethenetricarboxylates: Stereoselective Synthesis of 2-Oxotetrahydrofurans and 2-Oxopyrrolidines

2013 ◽  
Vol 78 (17) ◽  
pp. 8405-8416 ◽  
Author(s):  
Shoko Yamazaki ◽  
Ken Fujinami ◽  
Yuki Maitoko ◽  
Khota Ueda ◽  
Kiyomi Kakiuchi
Keyword(s):  
Lewis Acid ◽  
Stereoselective Synthesis ◽  
Cyclization Reactions

Stereoselective Synthesis of C-Ketosides by Lewis Acid Catalyzed C-Glycosylation of Alkynyl-Ketoses.

ChemInform ◽  
2003 ◽  
Vol 34 (14) ◽  
Author(s):  
Ana M. Gomez ◽  
Clara Uriel ◽  
Serafin Valverde ◽  
Slawomir Jarosz ◽  
J. Cristobal Lopez
Keyword(s):  
Lewis Acid ◽  
Stereoselective Synthesis ◽  
Acid Catalyzed

Stereoselective synthesis of tetracyclic indolines via gold-catalyzed cascade cyclization reactions

2011 ◽  
Vol 47 (27) ◽  
pp. 7803 ◽  
Author(s):  
Gianpiero Cera ◽  
Pasquale Crispino ◽  
Magda Monari ◽  
Marco Bandini
Keyword(s):  
Stereoselective Synthesis ◽  
Cyclization Reactions ◽  
Cascade Cyclization

scholarly journals Recent Developments in Polyene Cyclizations and Their Applications in Natural Product Synthesis

Synthesis ◽  
2018 ◽  
Vol 51 (01) ◽  
pp. 67-82 ◽  
Author(s):  
Anthony Barrett ◽  
Tsz-Kan Ma ◽  
Thomas Mies
Keyword(s):  
Transition Metal ◽  
Natural Product ◽  
Lewis Acid ◽  
Multiple Bond ◽  
Natural Product Synthesis ◽  
Cyclization Reactions ◽  
Cascade Cyclizations ◽  
Highly Efficient ◽  
Recent Developments ◽  
Radical Cascade

Cascade polyene cyclization reactions are highly efficient and elegant bioinspired transformations that involve simultaneous multiple bond constructions to rapidly generate complex polycyclic molecules. This review summarizes the most prominent work on a variety of cationic and radical cascade cyclizations and their applications in natural product synthesis published between 2014 and 2018.1 Introduction2 Cationic Polyene Cyclizations2.1 Lewis Acid Mediated Polyene Cyclizations2.2 Brønsted Acid Mediated Polyene Cyclizations2.3 Halogen Electrophile Initiated Polyene Cyclizations2.4 Sulfur Electrophile Initiated Polyene Cyclizations2.5 Transition-Metal-Mediated Cationic Polyene Cyclizations3 Radical Polyene Cyclizations3.1 Transition-Metal-Mediated Radical Polyene Cyclizations3.2 Photocatalyst-Mediated Polyene Cyclizations4 Origin of Stereocontrol in Polyene Cyclizations5 Conclusion

Counterion effects in the catalytic stereoselective synthesis of 2,3′-pyrrolidinyl spirooxindoles

2014 ◽  
Vol 50 (40) ◽  
pp. 5242-5244 ◽  
Author(s):  
Jacob P. MacDonald ◽  
Benjamin H. Shupe ◽  
John D. Schreiber ◽  
Annaliese K. Franz
Keyword(s):  
Lewis Acid ◽  
Stereoselective Synthesis ◽  
Acid Catalyzed

A Lewis acid-catalyzed stereoselective [3+2] annulation of crotylsilanes with iminooxindoles is reported to access 2,3′-pyrrolidinyl spirooxindoles with four stereocenters.

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