scholarly journals Chiral ammonium betaine-catalyzed asymmetric Mannich-type reaction of oxindoles

2016 ◽  
Vol 12 ◽  
pp. 2099-2103 ◽  
Author(s):  
Masahiro Torii ◽  
Kohsuke Kato ◽  
Daisuke Uraguchi ◽  
Takashi Ooi
Keyword(s):  
High Fidelity ◽  
Catalytic Method ◽  
Type Reaction ◽  
Carbon Centers ◽  
Axially Chiral

A highly diastereo- and enantioselective Mannich-type reaction of 3-aryloxindoles with N-Boc aldimines was achieved under the catalysis of axially chiral ammonium betaines. This catalytic method provides a new tool for the construction of consecutive quaternary and tertiary stereogenic carbon centers on biologically intriguing molecular frameworks with high fidelity.

Catalytic Asymmetric Construction of Halogenated Stereogenic Carbon Centers by Direct Vinylogous Mannich-Type Reaction

2018 ◽  
Vol 140 (45) ◽  
pp. 15170-15175 ◽  
Author(s):  
Feng Zhong ◽  
Wen-Jun Yue ◽  
Hai-Jun Zhang ◽  
Cheng-Yuan Zhang ◽  
Liang Yin
Keyword(s):  
Type Reaction ◽  
Carbon Centers ◽  
Catalytic Asymmetric

scholarly journals Palladium-Catalyzed Asymmetric Synthesis of Axially Chiral (Allenylmethyl)silanes and Chirality Transfer to Stereogenic Carbon Centers in SE′ Reactions.

ChemInform ◽  
2003 ◽  
Vol 34 (21) ◽  
Author(s):  
Masamichi Ogasawara ◽  
Kazuhito Ueyama ◽  
Takashi Nagano ◽  
Yoshiyuki Mizuhata ◽  
Tamio Hayashi
Keyword(s):  
Asymmetric Synthesis ◽  
Chirality Transfer ◽  
Carbon Centers ◽  
Axially Chiral ◽  
Palladium Catalyzed

A diastereoselective Mannich-type reaction of α-fluorinated carboxylate esters: synthesis of β-amino acids containing α-quaternary fluorinated carbon centers

2016 ◽  
Vol 14 (27) ◽  
pp. 6457-6462 ◽  
Author(s):  
Xiang Li ◽  
Ya Li ◽  
Huaqi Shang
Keyword(s):  
Amino Acids ◽  
Type Reaction ◽  
Carbon Centers ◽  
Fluorinated Carbon

A diastereoselective Mannich-type reaction of α-alkyl, α-aryl, and α-vinyl fluoroacetates with N-tert-butylsulfinyl imines to access highly functionalized β-amino acids has been developed.

Palladium-Catalyzed Asymmetric Synthesis of Axially Chiral (Allenylmethyl)silanes and Chirality Transfer to Stereogenic Carbon Centers in SE‘ Reactions

2003 ◽  
Vol 5 (2) ◽  
pp. 217-219 ◽  
Author(s):  
Masamichi Ogasawara ◽  
Kazuhito Ueyama ◽  
Takashi Nagano ◽  
Yoshiyuki Mizuhata ◽  
Tamio Hayashi
Keyword(s):  
Asymmetric Synthesis ◽  
Chirality Transfer ◽  
Carbon Centers ◽  
Axially Chiral ◽  
Palladium Catalyzed

Recent Advances in the Carbon–Carbon Bond-Forming Reactions of N-Acylketimines

Synthesis ◽  
2017 ◽  
Vol 49 (15) ◽  
pp. 3366-3376 ◽  
Author(s):  
Haruyasu Asahara
Keyword(s):  
Nucleophilic Addition ◽  
Building Blocks ◽  
Carbon Bond ◽  
Type Reaction ◽  
Carbon Centers ◽  
Bond Forming ◽  
Amino Compounds ◽  
Carbon Carbon Bond ◽  
Amide Derivatives ◽  
Bond Forming Reactions

N-Acylketimines are important synthetic building blocks used in the synthesis of a wide variety of functional amino compounds including cyclic and acyclic products. This review focuses on carbon–carbon bond-forming reactions of N-acylketimines to construct amino compounds having tetrasubstituted carbon centers.1 Introduction2 Preparation of N-Acylketimines2.1 Nucleophilic Addition of Amide Derivatives2.2 Acylation of Imine Derivatives2.3 An Aza-Wittig-Type Reaction2.4 Oxidation of Amine Precursors3 Reactions of N-Acylketimines3.1 Cyclic Ketimines3.2 Acyclic Ketimines4 Conclusions

Using the Theory of Planned Behavior to Predict Faking in Selection Exercises Varying in Fidelity

2018 ◽  
Vol 17 (3) ◽  
pp. 155-160 ◽  
Author(s):  
Daniel Dürr ◽  
Ute-Christine Klehe
Keyword(s):  
Theory Of Planned Behavior ◽  
Planned Behavior ◽  
Predictive Validity ◽  
Group Discussion ◽  
Role Play ◽  
Selection Procedure ◽  
High Fidelity ◽  
Selection Research ◽  
Play Group

Abstract. Faking has been a concern in selection research for many years. Many studies have examined faking in questionnaires while far less is known about faking in selection exercises with higher fidelity. This study applies the theory of planned behavior (TPB; Ajzen, 1991 ) to low- (interviews) and high-fidelity (role play, group discussion) exercises, testing whether the TPB predicts reported faking behavior. Data from a mock selection procedure suggests that candidates do report to fake in low- and high-fidelity exercises. Additionally, the TPB showed good predictive validity for faking in a low-fidelity exercise, yet not for faking in high-fidelity exercises.

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