Highly Selective Addition of a Broad Spectrum of Trimethylsilane Pro-nucleophiles to <i>N</i>
-<i>tert</i>
-Butanesulfinyl Imines
作者:Manas Das、Donal F. O'Shea
DOI:10.1002/chem.201503354
日期:2015.12.14
Addition of organotrimethylsilane reagents to chiral N‐tert‐butanesulfinyl imines can be achieved in good yields and with excellent diastereoselectivities by employing TMSO−/Bu4N+ as a Lewis base activator in THF. A variety of aliphatic, aromatic, heteroaromatic and organometallic chiral imines were utilised as electrophiles for the synthesis of enantioenriched N‐tert‐butanesulfinyl amides. Remarkably
Remarkable Salt Effect on In-Mediated Allylation of <i>N</i>-<i>tert</i>-Butanesulfinyl Imines in Aqueous Media: Highly Practical Asymmetric Synthesis of Chiral Homoallylic Amines and Isoindolinones
作者:Xing-Wen Sun、Min Liu、Ming-Hua Xu、Guo-Qiang Lin
DOI:10.1021/ol8001514
日期:2008.3.1
A highly practical and efficient asymmetric synthesis of chiral homoallylic amines by In-mediated allylation of chiral N-tert-butanesulfinyl imines in aqueousmedia at room temperature was developed. With 2-formylbenzoate imine substrates, the method allows the highly enantioselective achievement of a variety of pharmacologically important 3-allyl isoindolinone compounds.
Diastereoselective addition of 2-alkoxy-2-fluoroacetate to N-(tert‑butylsulfinyl)imines: Synthesis of α-alkoxy-α-fluoro-β-amino acids
作者:Jie Wei、Li-Wen Ning、Ya Li
DOI:10.1016/j.jfluchem.2023.110118
日期:2023.5
A diastereoselective Mannich-type reaction of 2-alkoxy-2-fluoroacetate and N-(tert‑butylsulfinyl)imines is reported. This protocol provides a straightforward route to α-alkoxy-α-fluoro-β-amino acids in good yields and moderate to high diastereoselectivities. This approach uses readily accessible starting materials and is operationally simple. Additionally, the stereochemistry of the current reaction