Organic synthesis using haloboration reaction. Part 7. A stereospecific synthesis of (Z)-.delta.-halo-.gamma.,.delta.-unsaturated ketones via haloboration reaction of terminal alkynes

1985 ◽  
Vol 107 (18) ◽  
pp. 5225-5228 ◽  
Author(s):  
Yoshitaka Satoh ◽  
Hirokazu Serizawa ◽  
Shoji Hara ◽  
Akira Suzuki
Keyword(s):  
Organic Synthesis ◽  
Stereospecific Synthesis ◽  
Terminal Alkynes ◽  
Gamma Delta ◽  
Unsaturated Ketones

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.

ChemInform Abstract: C-H Functionalization of Terminal Alkynes Towards Stereospecific Synthesis of (E) or (Z) 2-Methylthio-1,4-ene-diones.

ChemInform ◽  
2015 ◽  
Vol 46 (30) ◽  
pp. no-no
Author(s):  
Shekaraiah Devari ◽  
Arvind Kumar ◽  
Ramesh Deshidi ◽  
Bhahwal Ali Shah
Keyword(s):  
Stereospecific Synthesis ◽  
Terminal Alkynes
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