Theory of chirality functions, generalized for molecules with chiral ligands

1973 ◽  
Vol 29 (3) ◽  
pp. 269-304 ◽  
Author(s):  
Alden Mead ◽  
Ernst Ruch ◽  
Alfred Sch�nhofer
Keyword(s):  
Chiral Ligands ◽  
Theory Of Chirality Functions ◽  
Chirality Functions

Concerning the theory of chirality functions

1977 ◽  
Vol 40 (2) ◽  
pp. 279-293 ◽  
Author(s):  
Hildegard Keller ◽  
Christine Krieger ◽  
Elisabeth Langer ◽  
Harald Lehner ◽  
Gerhard Derflinger
Keyword(s):  
Theory Of Chirality Functions ◽  
Chirality Functions

Concerning the theory of chirality functions

1980 ◽  
Vol 56 (1) ◽  
pp. 1-43 ◽  
Author(s):  
Gerhard Derflinger ◽  
Hildegard Keller
Keyword(s):  
Theory Of Chirality Functions ◽  
Chirality Functions

Synthesis of Axially Chiral 2,2’-Bisphosphobiarenes via a Nickel-Catalyzed Asymmetric Ullmann Coupling: General Access to Privileged Chiral Ligands without Optical Resolution

2020 ◽  
Author(s):  
Ziqing Zuo ◽  
Raphael Kim ◽  
Donald Watson
Keyword(s):  
Optical Resolution ◽  
Chiral Ligands ◽  
Chiral Auxiliaries ◽  
Axially Chiral ◽  
Ullmann Coupling

<div><p>We report an asymmetric Ullmann-type homocoupling of <i>ortho-</i>(iodo)arylphosphine oxides and <i>ortho</i>-(iodo)arylphosphonates that results in highly enantioenriched axially chiral bisphosphine oxides and bisphosphonates in good yields and excellent enantioselectivities. These products are readily converted to enantioenriched biaryl bisphosphines without need for chiral auxiliaries or optical resolution. This process provides a straightforward and practical route for the development of previously uninvestigated atroposelective biaryl bisphosphine ligands.</p></div>

Novel Chiral Ligands for Palladium-catalyzed Asymmetric Allylic Alkylation/ Asymmetric Tsuji-Trost Reaction: A Review

2019 ◽  
Vol 23 (11) ◽  
pp. 1168-1213 ◽  
Author(s):  
Samar Noreen ◽  
Ameer Fawad Zahoor ◽  
Sajjad Ahmad ◽  
Irum Shahzadi ◽  
Ali Irfan ◽  
...  
Keyword(s):  
Asymmetric Catalysis ◽  
Enantioselective Synthesis ◽  
Chiral Ligands ◽  
Allylic Alkylation ◽  
Research Groups ◽  
Asymmetric Allylic Alkylation ◽  
Catalytic Potential ◽  
Long Time ◽  
Palladium Catalyzed ◽  
Alkylation Reactions

Background: Asymmetric catalysis holds a prestigious role in organic syntheses since a long time and chiral inductors such as ligands have been used to achieve the utmost desired results at this pitch. The asymmetric version of Tsuji-Trost allylation has played a crucial role in enantioselective synthesis. Various chiral ligands have been known for Pdcatalyzed Asymmetric Allylic Alkylation (AAA) reactions and exhibited excellent catalytic potential. The use of chiral ligands as asymmetric inductors has widened the scope of Tsuji-Trost allylic alkylation reactions. Conclusion: Therefore, in this review article, a variety of chiral inductors or ligands have been focused for palladium catalyzed asymmetric allylic alkylation (Tsuji-Trost allylation) and in this regard, recently reported literature (2013-2017) has been described. The use of ligands causes the induction of enantiodiscrimination to the allylated products, therefore, the syntheses of various kinds of ligands have been targeted by many research groups to employ in Pd-catalyzed AAA reactions.

cis-Dioxomolybdenum(VI) Complexes Containing Chiral Ligands: Synthesis and Catalytic Application in Olefin Epoxidation

2011 ◽  
Vol 1 (2) ◽  
pp. 131-139 ◽  
Author(s):  
Jose A. Brito ◽  
Nathalie Saffon ◽  
Montserrat Gomez ◽  
Beatriz Royo
Keyword(s):  
Chiral Ligands ◽  
Olefin Epoxidation ◽  
Catalytic Application
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