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.

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

Intercepting the Nazarov Oxyallyl Intermediate with α-Formyl­vinyl Anion Equivalents to Access Formal Morita–Baylis–Hillman Alkylation Products

Synlett ◽  
2017 ◽  
Vol 28 (12) ◽  
pp. 1486-1490 ◽  
Author(s):  
F. West ◽  
Yen-Ku Wu ◽  
Rongrong Lin
Keyword(s):  
Lewis Acid ◽  
Stereoselective Synthesis ◽  
Domino Reaction ◽  
Alkylation Process ◽  
Acid Catalyzed

A Lewis acid catalyzed cationic domino reaction involving sequential electrocyclization and polar addition of allenol ethers onto the resulting oxyallyl species is described. The overall sequence allows a highly stereoselective synthesis of densely substituted cyclopentanoid compounds containing α-formylvinyl functionality which is formally equivalent to products of a Morita–Baylis–Hillman alkylation process.

Stereoselective Synthesis of C- and N-Ketosides by Lewis Acid Catalyzed C- and N-Glycosidation of Alkynyl, Phenyl, and Methyl Ketoses.

ChemInform ◽  
2004 ◽  
Vol 35 (17) ◽  
Author(s):  
Ana M. Gomez ◽  
Clara Uriel ◽  
Slawomir Jarosz ◽  
Serafin Valverde ◽  
J. Cristobal Lopez
Keyword(s):  
Lewis Acid ◽  
Stereoselective Synthesis ◽  
C And N ◽  
Acid Catalyzed
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