Chiral Phosphoric Acid Catalyzed Asymmetric Addition of 2-(Vinyloxy)ethanol to Imines and Applications of the Products

2019 ◽  
Vol 21 (13) ◽  
pp. 5335-5340 ◽  
Author(s):  
Xudong Wu ◽  
Xi Yuan ◽  
Haijun Yang ◽  
Hua Fu
Keyword(s):  
Phosphoric Acid ◽  
Asymmetric Addition ◽  
Chiral Phosphoric Acid ◽  
Acid Catalyzed

Chiral phosphoric acid catalyzed asymmetric addition of naphthols to para-quinone methides

2016 ◽  
Vol 14 (24) ◽  
pp. 5751-5754 ◽  
Author(s):  
Yuk Fai Wong ◽  
Zhaobin Wang ◽  
Jianwei Sun
Keyword(s):  
Phosphoric Acid ◽  
Quinone Methides ◽  
Asymmetric Addition ◽  
Chiral Phosphoric Acid ◽  
Acid Catalyzed

An asymmetric addition of naphthols to in situ generated para-quinone methides catalyzed by a chiral phosphoric acid is described.

Chiral Phosphoric Acid Catalyzed Stereoselective Spiroketalizations

Synlett ◽  
2013 ◽  
Vol 24 (06) ◽  
pp. 661-665 ◽  
Author(s):  
Pavel Nagorny ◽  
Zhankui Sun ◽  
Grace Winschel
Keyword(s):  
Phosphoric Acid ◽  
Chiral Phosphoric Acid ◽  
Acid Catalyzed

scholarly journals Catalytic Enantioselective Synthesis of 4-Amino-1,2,3,4-tetrahydropyridine Derivatives from Intramolecular Nucleophilic Addition Reaction of Tertiary Enamides

Synlett ◽  
2018 ◽  
Vol 30 (04) ◽  
pp. 483-487 ◽  
Author(s):  
Shuo Tong ◽  
Mei-Xiang Wang
Keyword(s):  
Phosphoric Acid ◽  
Asymmetric Catalysis ◽  
Nucleophilic Addition ◽  
Addition Reaction ◽  
Enantioselective Synthesis ◽  
Chiral Phosphoric Acid ◽  
Substrate Engineering ◽  
Nucleophilic Addition Reaction ◽  
Engineering Strategy ◽  
Acid Catalyzed

A general and efficient method for the synthesis of highly enantiopure 4-amino-1,2,3,4-tetradydropyridine derivatives based on chiral phosphoric acid catalyzed intramolecular nucleophilic addition of tertiary enamides to imines has been developed. We have also demonstrated a substrate engineering strategy to significantly improve the enantioselectivity of asymmetric catalysis

scholarly journals Identifying the true origins of selectivity in chiral phosphoric acid catalyzed N-acyl-azetidine desymmetrizations

2021 ◽  
Author(s):  
Pier Alexandre Champagne
Keyword(s):  
Phosphoric Acid ◽  
Chiral Phosphoric Acid ◽  
Transition Structures ◽  
Acid Catalyzed

The origins of selectivity in azetidine desymmetrizations have been determined computationally. Comparison of structures with model and full catalysts provided key details missed by typical analyses of the stereodetermining transition structures.

scholarly journals Recent advances in the asymmetric phosphoric acid-catalyzed synthesis of axially chiral compounds

2021 ◽  
Vol 17 ◽  
pp. 2729-2764
Author(s):  
Alemayehu Gashaw Woldegiorgis ◽  
Xufeng Lin
Keyword(s):  
Phosphoric Acid ◽  
Asymmetric Catalysis ◽  
Medicinal Chemistry ◽  
High Efficiency ◽  
Biologically Active ◽  
Chiral Compounds ◽  
Chiral Phosphoric Acid ◽  
Wide Range ◽  
Axially Chiral ◽  
Acid Catalyzed

In recent years, the synthesis of axially chiral compounds has received considerable attention due to their extensive application as biologically active compounds in medicinal chemistry and as chiral ligands in asymmetric catalysis. Chiral phosphoric acids are recognized as efficient organocatalysts for a variety of enantioselective transformations. In this review, we summarize the recent development of chiral phosphoric acid-catalyzed synthesis of a wide range of axially chiral biaryls, heterobiaryls, vinylarenes, N-arylamines, spiranes, and allenes with high efficiency and excellent stereoselectivity.

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