作者:Joseph P. Marino、Michael S. McClure、David P. Holub、João V. Comasseto、Fabío C. Tucci
DOI:10.1021/ja017177t
日期:2002.2.1
The total synthesis of (-)-macrolactin A, a 24-membered macrolide, has been achieved using a newly developed 1,3-diol synthon for the introduction of two key stereogenic centers. The synthon was derived from sequential use of the Noyori asymmetric reduction followed by chiral sulfoxide methodology. Tellurium-derived cuprate organometallics offered an efficient and highly stereoselective means for installation
Use of Chiral Sulfoxide in the Asymmetric Synthesis of (+)-Virol C
作者:Hélio A. Stefani、Paulo H. Menezes、Iguatemi M. Costa、Diogo O. Silva、Nicola Petragnani
DOI:10.1055/s-2002-32973
日期:——
The total synthesis of virol C 1 was accomplished using a diastereoselective carbonyl reduction induced by a chiral sulfoxide, a Pummerer rearrangement to give the corresponding aldehyde fragment, and coupling reactionsusingWittig and Cadiot-Chodk-iewicz protocols.
病毒 C 1 的全合成使用由手性亚砜诱导的非对映选择性羰基还原、Pummerer 重排得到相应的醛片段以及使用 Wittig 和 Cadiot-Chodk-iewicz 方案的偶联反应来完成。
Diastereoselective kinetically and thermodynamically controlled additions of (R)-(+)-methyl p-tolyl sulphoxide anion to imines (tolyl = C6H4Me)
作者:Stephen G. Pyne、Branko Dikic
DOI:10.1039/c39890000826
日期:——
The anion of (R)-(+)-methyl p-tolyl sulphoxide reacts diastereoselectively with imines to give chiral β-amino sulphoxides.
Highly diastereoselective reduction of chiral β-ketosulphoxides under chelation control: application to the synthesis of (R)-(+)-n-hexadecano-1,5-lactone
作者:Hiroshi Kosugi、Hiroshi Konta、Hisashi Uda
DOI:10.1039/c39850000211
日期:——
The presence of zinc chloride in the reduction of chiralβ-ketosulphoxides with di-isobutylaluminium hydride effects high 1,3-asymmetric induction to give β-hydroxysulphoxides; this method can be successfully applied to the synthesis of optically pure 1,4- or 1,5-lactones.
Substituent Effect on the Enantioface-Differentiating Reaction of (<i>R</i>)-[Lithiomethyl<i>p</i>-Tolyl Sulfoxide] with<i>m</i>- or<i>p</i>-Substituted Acetophenones
作者:Norio Kunieda、Junzo Nokami、Masayoshi Kinoshita
DOI:10.1246/bcsj.65.526
日期:1992.2
When lithiomethyl p-tolyl sulfoxide derived from (R)-(+)-[methyl p-tolyl sulfoxide] was allowed to react with acetophenones which have a variety of m- or p-substituents, the corresponding diastereometic mixture of β-hydroxy sulfoxides (RsSc and RsRc) was produced. The degree of enantioselectivity was affected by the nature of the substituent on benzene ring. The logarithms of the RsSc/RsRc values thus