Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Dehimi Ouali"'
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 147:5637-5648
Polystyrene/organo-Algerian montmorillonite hybrid material was prepared by radical copolymerization of styrene monomer in the presence of the double organic modified clay. Before copolymerization process, the local (Algerian) montmorillonite was sod
Publikováno v:
Journal of New Technology and Materials. 11:10-18
Publikováno v:
International Journal of Intelligent Engineering and Systems. 11:266-274
Autor:
Lisa R Bennett, Arshed Mahmood, Jacqueline D Hewitt, John Leonard, Dehimi Ouali, Stephen J. Simpson
Publikováno v:
Tetrahedron. 58:4681-4691
The monoketal derived from cis-bicyclo[3.3.0]octane-3,7-dione was converted into the corresponding exo and endo epoxides. The meso exo epoxide was rearranged via enantioselective deprotonation using chiral lithium amide bases to provide a synthetical
Autor:
John Leonard, Stephen J. Simpson, Jacqueline D Hewitt, Roger F. Newton, Dehimi Ouali, Shirley K. Rahman
Publikováno v:
ChemInform. 22
The monoketal derived from cis-bicyclo[3.3.0]octane-3,7-dione was deprotonated using chiral lithium amide bases and the enolates were trapped as either enol acetates or trimethylsilyl enol ethers. Oxidative cleavage of the enol derivatives provided u
Publikováno v:
ChemInform. 23
The monoketal derived from cis-bicyclo[3.3.0]octane-3,7-dione was converted to epoxides 3. The meso exo epoxide was cleaved via enantioselective deprotonation using chiral lithium amide bases to provide the synthetically useful alcohol 7 with up to 7
Publikováno v:
Journal of Chemical Research. 2000:176-178
Chiral polyfunctionalised cyclopentanes have been readily obtained in ~65% enantiomeric excess via a stereo-specific Wagner–Meerwein rearrangement induced by bromination of derivatives of the exo-cis Diels–Alder adduct of furan and maleic anhydri
Publikováno v:
Tetrahedron Letters. 31:6703-6706
The monoketal derived from cis-bicyclo[3.3.0]octane-3,7-dione was converted to epoxides 3. The meso exo epoxide was cleaved via enantioselective deprotonation using chiral lithium amide bases to provide the synthetically useful alcohol 7 with up to 7
Autor:
Stephen J. Simpson, Dehimi Ouali, John Leonard, Roger F. Newton, Jacqueline D Hewitt, Shirley K. Rahman
Publikováno v:
Tetrahedron: Asymmetry. 1:699-702
The monoketal derived from cis-bicyclo[3.3.0]octane-3,7-dione was deprotonated using chiral lithium amide bases and the enolates were trapped as either enol acetates or trimethylsilyl enol ethers. Oxidative cleavage of the enol derivatives provided u
Publikováno v:
Tetrahedron Letters. 31:739-742
A short novel route to heteroyohimbine alkaloids is described. The key step in the process is the alkylation of a meso-ketone, during which its symmetry is broken. When chiral lithium amide bases are used for the ketone deprotonation encouraging leve