scholarly journals Asymmetric synthesis via stereospecific C–N and C–O bond activation of alkyl amine and alcohol derivatives

2018 ◽  
Vol 54 (87) ◽  
pp. 12286-12301 ◽  
Author(s):  
Sarah M. Pound ◽  
Mary P. Watson
Keyword(s):  
Asymmetric Synthesis ◽  
Bond Activation ◽  
Ammonium Salts ◽  
Alkyl Amine ◽  
Quaternary Stereocenters ◽  
Alkyl Ammonium

Stereospecific, nickel-catalyzed cross-couplings of alkyl ammonium salts and carboxylates enable preparation of highly enantioenriched products with tertiary and quaternary stereocenters.

Organocatalytic asymmetric synthesis of benzazepinoindole derivatives with trifluoromethylated quaternary stereocenters by chiral phosphoric acid catalysts

2018 ◽  
Vol 16 (8) ◽  
pp. 1367-1374 ◽  
Author(s):  
Abdul Rahman ◽  
En Xie ◽  
Xufeng Lin
Keyword(s):  
Phosphoric Acid ◽  
Asymmetric Synthesis ◽  
Acid Catalysts ◽  
Chiral Phosphoric Acid ◽  
Quaternary Stereocenters

An enantioselective aza-Friedel–Crafts reaction of trifluoromethyl dihydrobenzoazepinoindoles with pyrroles or indoles catalyzed by a chiral spirocyclic phosphoric acid was developed.

Catalytic asymmetric synthesis of pyrrolidine derivatives bearing heteroatom-substituted quaternary stereocenters

2018 ◽  
Vol 5 (1) ◽  
pp. 36-40 ◽  
Author(s):  
Zhi-Peng Wang ◽  
Qi Wu ◽  
Jia Jiang ◽  
Zi-Rui Li ◽  
Xiao-Jiao Peng ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Catalytic Asymmetric Synthesis ◽  
Catalytic Asymmetric ◽  
Quaternary Stereocenters

An enantioselective [3 + 2] cycloaddition of heteroatom-substituted alkenes with α-substituted isocyanoacetates has been developed. Excellent reactivity and enantioselectivity were obtained.

ChemInform Abstract: CRYSTALLINE ADDUCT FORMATION BETWEEN QUATERNARY ALKYL AMMONIUM SALTS AND SIMPLE AROMATIC COMPOUNDS

1973 ◽  
Vol 4 (39) ◽  
pp. no-no
Author(s):  
JOSEPH W. HARDY ◽  
ELRICK M. WILLIAMS ◽  
EDWARD LIPKIN ◽  
JEFFREY M. ROSEN ◽  
MICHAEL F. ROIZEN ◽  
...  
Keyword(s):  
Aromatic Compounds ◽  
Adduct Formation ◽  
Ammonium Salts ◽  
Crystalline Adduct ◽  
Alkyl Ammonium
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