ChemInform Abstract: Asymmetric Synthesis of 1-Substituted Tetrahydroisoquinolines by Nucleophilic Addition to Hydrazonium Ions. Application to the Enantioselective Syntheses of (+)- and (-)-Salsolidines and (-)- Cryptostyline II.

ChemInform ◽  
2010 ◽  
Vol 26 (52) ◽  
pp. no-no
Author(s):  
H. SUZUKI ◽  
S. AOYAGI ◽  
C. KIBAYASHI
Keyword(s):  
Asymmetric Synthesis ◽  
Nucleophilic Addition ◽  
Enantioselective Syntheses

Bifunctional Squaramide Catalyzed Asymmetric Synthesis of Chiral α-Mercaptosilanes

2021 ◽  
Author(s):  
Ye Zhang ◽  
Jingcheng Guo ◽  
Jinna Han ◽  
Xiangui Zhou ◽  
Wei Cao ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Carbonyl Compounds ◽  
Nucleophilic Addition

Bifunctional squaramide-catalyzed nucleophilic addition of thiophenols to easily available β-silyl α,β-unsaturated carbonyl compounds has been successfully developed. A structurally diverse set of chiral α-mercaptosilanes was efficiently prepared in good to...

Asymmetric Synthesis of Homoallylamines by Nucleophilic Addition of Chirally Modified Allylboron Reagent to N-Borylimines

Synlett ◽  
1999 ◽  
Vol 1999 (12) ◽  
pp. 1987-1989 ◽  
Author(s):  
Shinichi Itsuno ◽  
Ayako Yokoi ◽  
Shizue Kuroda
Keyword(s):  
Asymmetric Synthesis ◽  
Nucleophilic Addition

scholarly journals Applications of tert-butanesulfinamide in the asymmetric synthesis of amines

2003 ◽  
Vol 75 (1) ◽  
pp. 39-46 ◽  
Author(s):  
J. A. Ellman
Keyword(s):  
Amino Acids ◽  
Asymmetric Synthesis ◽  
Nucleophilic Addition ◽  
Amino Alcohols ◽  
Wide Range ◽  
Aldehydes And Ketones ◽  
Directing Group ◽  
High Yields ◽  
Direct Condensation

tert-Butanesulfinamide is prepared using catalytic enantioselective methods in two steps from the extremely inexpensive oil waste by-product, tert-butyl disulfide. Direct condensation of tert-butanesulfinamide with aldehydes and ketones provides tert-butanesulfinyl imines in uniformly high yields. The tert-butanesulfinyl group activates the imines for the addition of many different classes of nucleophiles, serves as a powerful chiral directing group, and after nucleophilic addition is readily cleaved by treatment with acid. A wide range of highly enantioenriched amines, including α-branched and α,α-dibranched amines, α- and β-amino acids, 1,2 and 1,3-amino alcohols and α-trifluoromethyl amines are efficiently synthesized using this methodology.

Asymmetric synthesis of (R)-S-(1,2,4-triazol-3-yl)cysteines by nucleophilic addition of triazolethiols to a NiIIcomplex with a chiral dehydroalanine Schiff base

2004 ◽  
Vol 53 (4) ◽  
pp. 932-935 ◽  
Author(s):  
A. S. Saghiyan ◽  
A. V. Geolchanyan ◽  
L. L. Manasyan ◽  
G. M. Mkrtchyan ◽  
N. R. Martirosyan ◽  
...  
Keyword(s):  
Schiff Base ◽  
Asymmetric Synthesis ◽  
Nucleophilic Addition

ChemInform Abstract: Stereoselective Nucleophilic Addition of PhSCF2SiMe3to Chiral Cyclic Nitrones: Asymmetric Synthesis of gem-Difluoromethylenated Polyhydroxypyrrolizidines and -indolizidines.

ChemInform ◽  
2015 ◽  
Vol 46 (49) ◽  
pp. no-no
Author(s):  
Korkit Korvorapun ◽  
Darunee Soorukram ◽  
Chutima Kuhakarn ◽  
Patoomratana Tuchinda ◽  
Vichai Reutrakul ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Nucleophilic Addition ◽  
Cyclic Nitrones
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