Chiral spiro phosphoric acid-catalysed enantioselective reaction of ketenes with N–H pyrroles

2021 ◽  
Author(s):  
Qian-Yi Wang ◽  
Teng-Fei Liu ◽  
Li-Feng Chu ◽  
Yun Yao ◽  
Chong-Dao Lu
Keyword(s):  
Phosphoric Acid ◽  
Enantioselective Reaction ◽  
Acid Catalyzed

A chiral spiro phosphoric acid-catalyzed enantioselective reaction of ketenes with N–H pyrroles leads to enantioenriched C-acylated pyrroles bearing α-stereogenic carbon centres.

Organocatalytic regio-, diastereo- and enantioselective γ-additions of isoxazol-5(4H)-ones to β,γ-alkynyl-α-imino esters for the synthesis of axially chiral tetrasubstituted α-amino allenoates

2021 ◽  
Author(s):  
Fushuai Li ◽  
Shuai Liang ◽  
Yepeng Luan ◽  
Xuling Chen ◽  
Hanhui Zhao ◽  
...  
Keyword(s):  
Phosphoric Acid ◽  
Chiral Phosphoric Acid ◽  
Axially Chiral ◽  
Enantioselective Reaction ◽  
Acid Catalyzed ◽  
Imino Esters

The chiral phosphoric acid catalyzed regio-, diastereo- and enantioselective reaction of isoxazol-5(4H)-ones with β,γ-alkynyl-α-imino esters has been developed.

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
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