ChemInform Abstract: Chiral Bisphosphazides as Dual Basic Enantioselective Catalysts.

ChemInform ◽  
2008 ◽  
Vol 39 (42) ◽  
Author(s):  
Hiroshi Naka ◽  
Nobuhiko Kanase ◽  
Masahiro Ueno ◽  
Yoshinori Kondo
2020 ◽  
Vol 24 (7) ◽  
pp. 746-773
Author(s):  
Péter Bakó ◽  
Tamás Nemcsok ◽  
Zsolt Rapi ◽  
György Keglevich

: Many catalysts were tested in asymmetric Michael additions in order to synthesize enantioenriched products. One of the most common reaction types among the Michael reactions is the conjugated addition of malonates to enones making it possible to investigate the structure–activity relationship of the catalysts. The most commonly used Michael acceptors are chalcone, substituted chalcones, chalcone derivatives, cyclic enones, while typical donors may be dimethyl, diethyl, dipropyl, diisopropyl, dibutyl, di-tert-butyl and dibenzyl malonates. This review summarizes the most important enantioselective catalysts applied in these types of reactions.


Polymer ◽  
2008 ◽  
Vol 49 (6) ◽  
pp. 1512-1519 ◽  
Author(s):  
Chien-An Chen ◽  
Kuo-Hui Wu ◽  
Han-Mou Gau

Author(s):  
Frédéric Taran ◽  
Cécile Gauchet ◽  
Barbara Mohar ◽  
Stéphane Meunier ◽  
Alain Valleix ◽  
...  

2001 ◽  
Vol 67 (4) ◽  
pp. 389-396 ◽  
Author(s):  
Manfred T. Reetz ◽  
Klaus M. Kühling ◽  
Stephanie Wilensek ◽  
Heribert Husmann ◽  
Ulrich W. Häusig ◽  
...  

RSC Advances ◽  
2018 ◽  
Vol 8 (59) ◽  
pp. 34004-34011 ◽  
Author(s):  
Begum Sharifa Zaithun ◽  
AbdulMalek Emilia ◽  
Tahir Mohamed Ibrahim Mohamed ◽  
Crouse Karen Anne ◽  
Abdul Rahman Mohd Basyaruddin

P5 with the sequence H2N-PGHD-CONH.


Synlett ◽  
2019 ◽  
Vol 30 (14) ◽  
pp. 1679-1682 ◽  
Author(s):  
Yuta Otsuka ◽  
Yuto Shimazaki ◽  
Hitoshi Nagaoka ◽  
Keiji Maruoka ◽  
Takuya Hashimoto

Chiral selenium π-acid catalysis has for a long time been lagging behind other areas of asymmetric catalysis due to a lack of highly enantioselective catalysts. In this regard, we recently developed the first chiral selenium π-acid catalyst which performs the oxidative cyclization of β,γ-unsaturated carboxylic acids with high enantioselectivities. We report herein our improved synthesis of this chiral selenium catalyst, which allows access to a large quantity of the catalyst as the diselenide. In addition, the catalyst is tested in the oxidative cyclization of N-methoxy β,γ-unsaturated amides to give iminolactones with high enantioselectivities.


Sign in / Sign up

Export Citation Format

Share Document