scholarly journals Stereocontrolled Synthesis of Functionalized cis-Cyclopentapyrazolidines by 1,3-Dipolar Cycloaddition Reactions of Azomethine Imines.

ChemInform ◽  
2007 ◽  
Vol 38 (12) ◽  
Author(s):  
Joshua Gergely ◽  
Jeremy B. Morgan ◽  
Larry E. Overman
Keyword(s):  
Dipolar Cycloaddition ◽  
Cycloaddition Reactions ◽  
Stereocontrolled Synthesis ◽  
Azomethine Imines

Stereocontrolled Synthesis of Triazacyclopenta[cd]pentalenes by Intramolecular 1,3-Dipolar Cycloaddition Reactions of Azomethine Imines

2002 ◽  
Vol 67 (22) ◽  
pp. 7880-7883 ◽  
Author(s):  
Guillaume Bélanger ◽  
Fang-Tsao Hong ◽  
Larry E. Overman ◽  
Bruce N. Rogers ◽  
John E. Tellew ◽  
...  
Keyword(s):  
Dipolar Cycloaddition ◽  
Cycloaddition Reactions ◽  
Stereocontrolled Synthesis ◽  
Azomethine Imines

scholarly journals Asymmetric 1,3-Dipolar Cycloaddition Reactions of Azomethine Imines with Acrolein Catalyzed by L-Proline and Its Derivatives

Heterocycles ◽  
2010 ◽  
Vol 81 (7) ◽  
pp. 1669 ◽  
Author(s):  
Hiroyuki Suga ◽  
Tadashi Arikawa ◽  
Kennosuke Itoh ◽  
Yukihisa Okumura ◽  
Akikazu Kakehi ◽  
...  
Keyword(s):  
Dipolar Cycloaddition ◽  
Cycloaddition Reactions ◽  
Azomethine Imines

ChemInform Abstract: Asymmetric 1,3-Dipolar Cycloaddition Reactions of Azomethine Imines with Acrolein Catalyzed by L-Proline and Its Derivatives.

ChemInform ◽  
2010 ◽  
Vol 41 (50) ◽  
pp. no-no
Author(s):  
Hiroyuki Suga ◽  
Tadashi Arikawa ◽  
Kennosuke Itoh ◽  
Yukihisa Okumura ◽  
Akikazu Kakehi ◽  
...  
Keyword(s):  
Dipolar Cycloaddition ◽  
Cycloaddition Reactions ◽  
Azomethine Imines

Multicomponent 1,3-Dipolar Cycloaddition Reactions in the Construction of Hybrid Spiroheterocycles

2013 ◽  
Vol 17 (18) ◽  
pp. 1929-1956 ◽  
Author(s):  
Natarajan Arumugam ◽  
Raju Kumar ◽  
Abdulrahman Almansour ◽  
Subbu Perumal
Keyword(s):  
Dipolar Cycloaddition ◽  
Cycloaddition Reactions

π-Facial Selectivity in 1,3-Dipolar Cycloaddition Reactions of α-Methylidene-γ-lactone Substituted by 4-Methyl-2,6,7-trioxabicyclo[2.2.2]octan-1-yl Group in γ-Position

2002 ◽  
Vol 67 (3) ◽  
pp. 353-364 ◽  
Author(s):  
Petr Melša ◽  
Ctibor Mazal
Keyword(s):  
Double Bond ◽  
Carboxylic Acid ◽  
Nitrile Oxide ◽  
Dipolar Cycloaddition ◽  
Cycloaddition Reactions ◽  
Enantiomerically Pure ◽  
Nitrile Imine ◽  
Facial Selectivity ◽  
Excellent Selectivity

Diastereoselectivity of 1,3-dipolar cycloaddition reactions of benzyl azide, diazomethane, a nitrile oxide and a nitrile imine to α-methylidene-γ-lactone dipolarophile was effectively controlled by a bulky γ-substituent, 4-methyl-2,6,7-trioxabicyclo[2.2.2]octan-1-yl in γ-position of the dipolarophile. The dipoles added from the less hindered face of the double bond with an excellent selectivity. Enantiomerically pure dipolarophile was prepared from the easily available (S)-5-oxotetrahydrohydrofuran-2-carboxylic acid.

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