Highly Stereoselective Anti SN2‘ Substitutions of (Z)-Allylic Pentafluorobenzoates with Polyfunctionalized Zinc−Copper Reagents
摘要:
[GRAPHICS]Allylic substitution reactions of zinc-copper organometallics on (Z)-allylic pentafluorobenzoates proceed with very high regioselectivity and excellent anti selectivity. The high fidelity in transfer of stereochemical information allowed a short synthesis of (+)-ibuprofen (97% ee).
Selective hydroboration of conjugated diynes with dialkylboranes. A convenient route to conjugated cis-enynes, .alpha.,.beta.-acetylenic ketones, and cis,cis-dienes
Alkynes were successfully converted into α,β-acetylenic carbonyl compounds through radical-catalyzed aerobic oxidation using N-hydroxyphthalimide (NHPI) combined with a transion metal under mild conditions.
MANGANESE-COPPER-CATALYZED CONJUGATE ADDITION OF ORGANOMAGNESIUM REAGENTS TO a,b-ETHYLENIC KETONES: 2-(1,1-DIMETHYLPENTYL)-5-METHYL-CYCLOHEXANONE FROM PULEGONE
作者:Marquais、Alami、Cahiez
DOI:10.15227/orgsyn.072.0135
日期:——
Atmospheric Oxidation of 6-Dodecyne<sup>*</sup>
作者:M. J. Murray、Forrest F. Cleveland
DOI:10.1021/ja01850a064
日期:1941.5
Highly Stereoselective Anti S<sub>N</sub>2‘ Substitutions of (<i>Z</i>)-Allylic Pentafluorobenzoates with Polyfunctionalized Zinc−Copper Reagents
作者:Nicole Harrington-Frost、Helena Leuser、M. Isabel Calaza、Florian F. Kneisel、Paul Knochel
DOI:10.1021/ol034525i
日期:2003.6.1
[GRAPHICS]Allylic substitution reactions of zinc-copper organometallics on (Z)-allylic pentafluorobenzoates proceed with very high regioselectivity and excellent anti selectivity. The high fidelity in transfer of stereochemical information allowed a short synthesis of (+)-ibuprofen (97% ee).
Selective hydroboration of conjugated diynes with dialkylboranes. A convenient route to conjugated cis-enynes, .alpha.,.beta.-acetylenic ketones, and cis,cis-dienes