scholarly journals Enantioselective PCCP Brønsted acid-catalyzed aza-Piancatelli rearrangement

2019 ◽  
Vol 15 ◽  
pp. 1569-1574 ◽  
Author(s):  
Gabrielle R Hammersley ◽  
Meghan F Nichol ◽  
Helena C Steffens ◽  
Jose M Delgado ◽  
Gesine K Veits ◽  
...  
Keyword(s):  
Building Blocks ◽  
Starting Material ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Rapid Access ◽  
Brönsted Acid ◽  
Acid Catalyzed ◽  
Chiral Bronsted Acid

An enantioselective aza-Piancatelli rearrangement has been developed using a chiral Brønsted acid based on pentacarboxycyclopentadiene (PCCP). This reaction provides rapid access to valuable chiral 4-amino-2-cyclopentenone building blocks from readily available starting material and is operationally simple.

Chiral Brønsted acid-catalyzed hydrophosphonylation of imines—DFT study on the effect of substituents of phosphoric acid

Tetrahedron ◽  
2009 ◽  
Vol 65 (26) ◽  
pp. 4950-4956 ◽  
Author(s):  
Takahiko Akiyama ◽  
Hisashi Morita ◽  
Prabhakar Bachu ◽  
Keiji Mori ◽  
Masahiro Yamanaka ◽  
...  
Keyword(s):  
Phosphoric Acid ◽  
Dft Study ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Effect Of Substituents ◽  
Brönsted Acid ◽  
Acid Catalyzed ◽  
Chiral Bronsted Acid

Chiral Brønsted Acid Catalyzed Dynamic Kinetic Asymmetric Hydroamination of Racemic Allenes and Asymmetric Hydroamination of Dienes

2019 ◽  
Vol 131 (21) ◽  
pp. 7166-7170 ◽  
Author(s):  
Jin‐Shun Lin ◽  
Tao‐Tao Li ◽  
Guan‐Yuan Jiao ◽  
Qiang‐Shuai Gu ◽  
Jiang‐Tao Cheng ◽  
...  
Keyword(s):  
Bronsted Acid ◽  
Brønsted Acid ◽  
Brönsted Acid ◽  
Acid Catalyzed ◽  
Chiral Bronsted Acid

scholarly journals Chiral Brønsted acid-catalyzed intramolecular SN2′ reaction for enantioselective construction of a quaternary stereogenic center

2018 ◽  
Vol 9 (26) ◽  
pp. 5747-5757 ◽  
Author(s):  
Masahiro Shimizu ◽  
Jun Kikuchi ◽  
Azusa Kondoh ◽  
Masahiro Terada
Keyword(s):  
Substitution Reaction ◽  
Allylic Substitution ◽  
Bronsted Acid ◽  
Brønsted Acid ◽  
Sn2 Reaction ◽  
Brönsted Acid ◽  
Acid Catalyzed ◽  
Chiral Bronsted Acid ◽  
Stereogenic Center

Construction of a quaternary stereogenic center was accomplished through the enantioselective intramolecular allylic substitution reaction of bis-trichloroacetimidate catalyzed by a chiral phosphoramide derivative.

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