145041-33-4Relevant academic research and scientific papers
Highly enantio- and diastereoselective boron aldol reactions of α-heterosubstituted thioacetates with aldehydes and silyl imines
Gennari, Cesare,Vulpetti, Anna,Pain, Gilles
, p. 5909 - 5924 (2007/10/03)
Boron enolates derived from α-heterosubstituted thioacetates and bearing menthone-derived chiral ligands react with aldehydes to give anti aldols with excellent diastero- and enantiocontrol. Boron enolates derived from tert-butyl α-halothioacetate and bearing menthone-derived chiral ligands react with imines with excellent diastero- and enantiocontrol to give syn α-halo-β-aminothioesters, which can be converted to the corresponding aziridines by simple ring closure during LAH reduction. A key precursor of antibiotics (+)-thiamphenicol and (-)-florfenicol was synthesized.
A Highly Enantio- and Diastereoselective Aldol Reaction for α-Heterosubstituted Thioacetates
Gennari, Cesare,Vulpetti, Anna,Moresca, Daniela
, p. 4857 - 4860 (2007/10/02)
Boron enolates derived from α-heterosubstituted thioacetates and bearing menthonederived chiral ligands reacts with aldehydes to give anti aldols with excellent diastereo- and enantiocontrol.
Highly stereocontrolled asymmetric syntheses of taxol and taxotere C-13 side chain analogues
Mukai, Chisato,Kim, In Jong,Furu, Etsuko,Hanaoka, Miyoji
, p. 8323 - 8336 (2007/10/02)
Asymmetric aldol reaction of (+)-tricarbonyl(η6-2-trimethylsilylbenzaldehyde)chromium(0) complex (4) with titanium enolate of S-tert-butyl benzyloxyethanethioate (10) provided, after consecutive desilylation and decomplexation, anti-aldol product 15 in a highly stereo selective manner. Anti-product 15 was subsequently converted to (2R,3S)-N-benzoyl- and N-tert-butoxycarbonyl-3-phenylisoserine methyl esters (23 and 24), C-13 side chain analogues of taxol (1) and taxotere (2).
An optically active chromium(0)-complexed benzaldehyde derivative in organic synthesis: A highly stereocontrolled total synthesis of (+)-goniofufurone
Mukai, Chisato,Kim, In Jong,Hanaoka, Miyoji
, p. 6081 - 6082 (2007/10/02)
An antitumor styryl-lactone, (+)-goniofufurone was synthesized in a highly diastereoselecdve manner from (+)-tricarbonyl(η6-2-trimethylsilylbenzaldehyde)chromium(0) complex through stereoselective aldol reactions as crucial steps.
An optically active chromium(0)-complexed benzaldehyde in organic synthesis: A highly stereocontrolled asymmetric synthesis of (2R,3S)-(-)-N-benzoyl-3-phenylisoserine methyl ester, the taxol C-13 side chain analogue
Mukai,Kim,Hanaoka
, p. 1007 - 1010 (2007/10/02)
An asymmetric aldol reaction of (+)-chromium(0)-complexed benzaldehyde 4 with the titanium enolate generated from the ethanethioate 5 provided the anti-aldol product 6 in a highly stereoselective manner, which was subsequently converted to the taxol C-13 side chain.
