Chiral Bis(imidazolidine)pyridine−Cu(OTf)2: Catalytic Asymmetric Endo-Selective [3 + 2] Cycloaddition of Imino Esters with Nitroalkenes

2010 ◽  
Vol 132 (15) ◽  
pp. 5338-5339 ◽  
Author(s):  
Takayoshi Arai ◽  
Asami Mishiro ◽  
Naota Yokoyama ◽  
Kuniko Suzuki ◽  
Hiroyasu Sato
Keyword(s):  
Catalytic Asymmetric ◽  
Imino Esters

Catalytic, Asymmetric Mannich-Type Reactions of α-Imino Esters Bearing Readily Removable Substituents on Nitrogen

2003 ◽  
Vol 5 (14) ◽  
pp. 2481-2484 ◽  
Author(s):  
Yoshitaka Nakamura ◽  
Ryosuke Matsubara ◽  
Hiroshi Kiyohara ◽  
Shū Kobayashi
Keyword(s):  
Catalytic Asymmetric ◽  
Imino Esters

scholarly journals Catalytic Asymmetric Mannich-Type Reactions of α-Imino Esters Bearing Readily Removable Substituents on Nitrogen.

ChemInform ◽  
2003 ◽  
Vol 34 (46) ◽  
Author(s):  
Yoshitaka Nakamura ◽  
Ryosuke Matsubara ◽  
Hiroshi Kiyohara ◽  
Shu Kobayashi
Keyword(s):  
Catalytic Asymmetric ◽  
Imino Esters

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.

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