Nickel/Zinc Iodide Co-catalytic Asymmetric [2+2] Cycloaddition Reactions of Azabenzonorbornadienes with Terminal Alkynes

2017 ◽  
Vol 360 (3) ◽  
pp. 427-431 ◽  
Author(s):  
Jingchao Chen ◽  
Xin Xu ◽  
Zhenxiu He ◽  
Hongyu Qin ◽  
Weiqing Sun ◽  
...  
Keyword(s):  
Cycloaddition Reactions ◽  
Terminal Alkynes ◽  
Nickel Zinc ◽  
Catalytic Asymmetric ◽  
Zinc Iodide

Metalloporphyrin catalysts for organic synthesis

2004 ◽  
Vol 08 (09) ◽  
pp. 1166-1171 ◽  
Author(s):  
Gérard Simonneaux ◽  
Pietro Tagliatesta
Keyword(s):  
Organic Synthesis ◽  
Enantiomeric Excess ◽  
Catalytic Reactions ◽  
Terminal Alkynes ◽  
Asymmetric Oxidation ◽  
Carbene Transfer ◽  
Catalytic Asymmetric ◽  
Chiral Systems ◽  
Metalloporphyrin Catalysts

Novel chiral systems for the catalytic asymmetric oxidation and cyclopropanation of olefins based on metalloporphyrins containing iron, ruthenium and manganese, have been recently introduced. High catalyst turnover numbers and sometimes high enantiomeric excess were observed. New catalytic reactions with metalloporphyrins have recently been reported; these are the olefination of aldehydes and cyclotrimerization of terminal alkynes. Dendrimers and polymers containing metalloporphyrins, have also been found to be efficient catalysts for oxidation and carbene transfer.

scholarly journals Catalytic asymmetric cycloaddition reactions of enoldiazo compounds

2019 ◽  
Vol 17 (17) ◽  
pp. 4183-4195 ◽  
Author(s):  
Kostiantyn O. Marichev ◽  
Michael P. Doyle
Keyword(s):  
Cycloaddition Reactions ◽  
Asymmetric Catalytic ◽  
Recent Advances ◽  
Catalytic Asymmetric

Review of recent advances in asymmetric catalytic cycloaddition reactions of silyl-protected enoldiazo compounds.

Visible Light-Mediated [2 + 2] Cycloaddition Reactions of 1,4-Quinones and Terminal Alkynes

2019 ◽  
Vol 84 (14) ◽  
pp. 8948-8958 ◽  
Author(s):  
Shaista Sultan ◽  
Muneer-ul-Shafi Bhat ◽  
Masood Ahmad Rizvi ◽  
Bhahwal Ali Shah
Keyword(s):  
Visible Light ◽  
Cycloaddition Reactions ◽  
Terminal Alkynes

Catalytic asymmetric addition reactions leading to carbon-carbon bond formation: Phenyl and alkenyl transfer to aldehydes and alkynylation of α-imino esters

2006 ◽  
Vol 78 (2) ◽  
pp. 267-274 ◽  
Author(s):  
Jian-Xin Ji ◽  
Jing Wu ◽  
Lijin Xu ◽  
Chiu-Wing Yip ◽  
Kim Hung Lam ◽  
...  
Keyword(s):  
Bond Formation ◽  
Optically Active ◽  
Amino Acid Derivatives ◽  
Addition Reactions ◽  
Terminal Alkynes ◽  
Reaction Conditions ◽  
Carbon Carbon Bond ◽  
Catalytic Asymmetric ◽  
High Yields ◽  
Imino Esters

Optically active tertiary aminonaphthol ligands were obtained by a new, convenient procedure and were found to catalyze the enantioselective alkenyl and phenyl transfer to aldehydes in high yields and excellent enantiomeric excesses (ee's). The catalytic asymmetric introduction of alkynyl functionality to α-amino acid derivatives was realized by the direct addition of terminal alkynes to α-imino ester in the presence of chiral copper(I) complex under mild reaction conditions.

ChemInform Abstract: Catalytic Asymmetric Conjugate Addition of Terminal Alkynes to β-Trifluoromethyl α,β-Enones.

ChemInform ◽  
2014 ◽  
Vol 45 (24) ◽  
pp. no-no
Author(s):  
Amparo Sanz-Marco ◽  
Andrea Garcia-Ortiz ◽  
Gonzalo Blay ◽  
Jose R. Pedro
Keyword(s):  
Conjugate Addition ◽  
Terminal Alkynes ◽  
Catalytic Asymmetric
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