191917-06-3Relevant articles and documents
A synthesis of enantiomerically enriched propargyl silanes
Fleming, Ian,Mwaniki, Joseph M.
, p. 1237 - 1247 (2007/10/03)
Reduction of ethyl 3-methyl-, 3-isopropyl- and 3-n-pentyl-3-[dimethyl(phenyl)silyl]propanoates 4 with DIBAL to the aldehydes 5, enol trifluoromethanesulfonate (triflate) formation using trifluoromethanesulfonic (triflic) anhydride and 2,6-di-tert-butylpyridine, and elimination using LDA, gives the propargyl silanes 8. The esters 4 could also be prepared enantiomerically enriched (11), and the final products are the enantiomerically enriched propargyl (homochiral) silanes 14.
In search of open-chain 1,3-stereocontrol
Barbero, Asun,Blakemore, David C.,Fleming, Ian,Wesley, Robert N.
, p. 1329 - 1352 (2007/10/03)
Methylation of methyl 4-phenylpentanoate 25 gives the diastereoisomers methyl (2RS,4SR)-2-methyl-4-phenylpentanoate 26 and methyl (2RS,4RS)- 2-methyl-4-phenylpentanoate 27 in a ratio of 44:56. The aldehydes 3-dimethyl(phenyl)silylbutanal 28, 3-dimethyl(ph