[EN] COMPOUNDS, COMPOSITIONS AND METHODS FOR SYNTHESIS<br/>[FR] COMPOSÉS, COMPOSITIONS ET PROCÉDÉS DE SYNTHÈSE
申请人:WAVE LIFE SCIENCES LTD
公开号:WO2018237194A1
公开(公告)日:2018-12-27
The present disclosure, among other things, provides technologies for synthesis, including reagents and methods for stereoselective synthesis. In some embodiments, the present disclosure provides compounds useful as chiral auxiliaries. In some embodiments, the present disclosure provides reagents and methods for oligonucleotide synthesis. In some embodiments, the present disclosure provides reagents and methods for chirally controlled preparation of oligonucleotides. In some embodiments, technologies of the present disclosure are particularly useful for constructing challenging internucleotidic linkages, providing high yields and stereoselectivity.
Vinyl anion equivalent V. Asymmetric synthesis of allylic alcohols using chiral 2-(trialkylsilyl)ethyl sulfoxides
作者:Shinya Kusuda、Yoshio Ueno、Takeshi Toru
DOI:10.1016/s0040-4020(01)80816-4
日期:1994.1
Both enantiomers of optically pure secondary allylic alcohols can be conveniently prepared by the diastereoselective reaction of the α-sulfinyl carbanion of p-tolyl 2-(trialkylsilyl)ethyl sulfoxides or tert-butyl 2-(trimethylsilyl)ethyl sulfoxide with aldehydes followed by either fluoride-induced desilylsulfinylation or thermal elimination of the sulfinyl group.
Stereoselective Synthesis of Highly Substituted α-Silylamines from Silylmethyl Azides under Ru Catalysis
作者:Wook Jeong、Jungjoon Kim、Jaiwook Park、Young Ho Rhee
DOI:10.1002/ejoc.201403200
日期:2014.12
diastereo- and enantioselectivity. The synthetic utility of the method was demonstrated by the use of the silyl moiety as the key element that enables late-stage modification for the iminiumionmediated oxidative cyclization.
The preparation and chemistry of (r)-(1-naphthyl)phenylmethylsilylmethyllithium: stereochemistry at silicon in the elimination of β-hydroxysilanes.
作者:Gerald L. Larson、J.Antonio Prieto、Edgardo Ortiz
DOI:10.1016/s0040-4020(01)86636-9
日期:1988.1
acrolein and 2-methylcyclohexanone to produce the corresponding β-hydroxysilanes in good yield, but with only a 3–4% diastereomeric excess. Unfortunately, these diastereomers proved impossible to separate. Model studies employing the methyldiphenylsilyl group showed that these β-hydroxysilanes could be protiodesilylated to give the corresponding methyl alcohol. The products from the adduct with pivaldehyde
The selectivepopulation transfer (SPT) technique has been applied to 29Si NMR of the complete series of methylchlorodisilylmethanes, several of which are new compounds. A great enhancement of the signals was observed and unambiguous assignments based on the determination of 2J(SiH) couplingconstants could be made. The first example of this type is presented.
选择性种群转移(SPT)技术已应用于甲基氯二甲硅烷基甲烷的完整系列的29 Si NMR,其中一些是新化合物。观察到信号大大增强,可以基于2 J(SiH)耦合常数的确定进行明确分配。给出了这种类型的第一个例子。