scholarly journals N-Sulfinyl β-Amino Weinreb Amides: Synthesis of Enantiopure β-Amino Carbonyl Compounds. Asymmetric Synthesis of (+)-Sedridine and (-)-Allosedridine.

ChemInform ◽  
2003 ◽  
Vol 34 (35) ◽  
Author(s):  
Franklin A. Davis ◽  
Kavirayani R. Prasad ◽  
M. Brad Nolt ◽  
Yongzhong Wu
Keyword(s):  
Asymmetric Synthesis ◽  
Carbonyl Compounds ◽  
Weinreb Amides

scholarly journals Asymmetric Synthesis of β-Amino Carbonyl Compounds with N-Sulfinyl β-Amino Weinreb Amides.

ChemInform ◽  
2005 ◽  
Vol 36 (33) ◽  
Author(s):  
Franklin A. Davis ◽  
M. Brad Nolt ◽  
Yongzhong Wu ◽  
Kavirayani R. Prasad ◽  
Danyang Li ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Carbonyl Compounds ◽  
Weinreb Amides

Asymmetric Synthesis of β-Amino Carbonyl Compounds withN-Sulfinyl β-Amino Weinreb Amides

2005 ◽  
Vol 70 (6) ◽  
pp. 2184-2190 ◽  
Author(s):  
Franklin A. Davis ◽  
M. Brad Nolt ◽  
Yongzhong Wu ◽  
Kavirayani R. Prasad ◽  
Danyang Li ◽  
...  
Keyword(s):  
Asymmetric Synthesis ◽  
Carbonyl Compounds ◽  
Weinreb Amides

N-Sulfinyl β-Amino Weinreb Amides:  Synthesis of Enantiopure β-Amino Carbonyl Compounds. Asymmetric Synthesis of (+)-Sedridine and (−)-Allosedridine

2003 ◽  
Vol 5 (6) ◽  
pp. 925-927 ◽  
Author(s):  
Franklin A. Davis ◽  
Kavirayani R. Prasad ◽  
M. Brad Nolt ◽  
Yongzhong Wu
Keyword(s):  
Asymmetric Synthesis ◽  
Carbonyl Compounds ◽  
Weinreb Amides

Enantioselective Radical Functionalization of Imines and Iminium Intermediates via Visible Light Photoredox Catalysis

Synthesis ◽  
2020 ◽  
Author(s):  
Jia-Jia Zhao ◽  
Hong-Hao Zhang ◽  
Shouyun Yu
Keyword(s):  
Visible Light ◽  
Asymmetric Synthesis ◽  
Carbonyl Compounds ◽  
Asymmetric Reduction ◽  
Chemical Transformations ◽  
Photoredox Catalysis ◽  
Radical Coupling ◽  
Mild Conditions ◽  
Iminium Ions ◽  
Radical Functionalization

Visible light photoredox catalysis has recently emerged as a powerful tool for the development of new and valuable chemical transformations under mild conditions. Visible-light promoted enantioselective radical transformations of imines and iminium intermediates provide new opportunities for the asymmetric synthesis of amines and asymmetric β-functionalization of unsaturated carbonyl compounds. In this review, the advance in the catalytic asymmetric radical functionalization of imines, as well as iminium intermediates, are summarized. 1 Introduction 2 The enantioselective radical functionalization of imines 2.1 Asymmetric reduction 2.2 Asymmetric cyclization 2.3 Asymmetric addition 2.4 Asymmetric radical coupling 3 The enantioselective radical functionalization of iminium ions 3.1 Asymmetric radical alkylation 3.2 Asymmetric radical acylation 4 Conclusion

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...

scholarly journals Asymmetric synthesis with "privileged" ligands

2001 ◽  
Vol 73 (2) ◽  
pp. 325-329 ◽  
Author(s):  
Marco Bandini ◽  
Pier Giorgio Cozzi ◽  
Achille Umani-Ronchi
Keyword(s):  
Open Access ◽  
Asymmetric Synthesis ◽  
Carbonyl Compounds ◽  
Aromatic Aldehydes ◽  
Redox Processes ◽  
Asymmetric Allylation ◽  
Salen Complexes ◽  
Allyl Halides ◽  
Different Types ◽  
Enantioselective Addition

Different types of chiral "privileged" ligands 1 and 2 in promoting enantioselective addition of allylating agents to aliphatic and aromatic aldehydes are described. Here, a new concept in the asymmetric allylation reaction is presented. Redox [Cr (Salen) ] mediated addition of allyl halides to carbonyl compounds is described, and mechanistic investigations are discussed. These results open access to the fascinating area of the catalytic redox processes mediated by metallo-Salen complexes.

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