全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Kun Xu , Kazuko Nakazono , Toshikazu Takata
来源:[J].Tetrahedron Letters(IF 2.397), 2016, Vol.57 (39), pp.4356-4359Elsevier
摘要:Abstract(#br)Selective synthesis of optically active rotaxane amine N -oxides was achieved with high diastereoselectivity via the effective through-space chirality transfer. Oxidation of tert -amine moiety on axle component of rotaxane with an optically active wheel component ...
作者:Michiko Sasaki , Misato Fujiwara , Yuri Kotomori ...
来源:[J].Tetrahedron(IF 2.803), 2013, Vol.69 (29), pp.5823-5828Elsevier
摘要:Abstract(#br)Chirality transfer from an α-silylalcohol to α-carbmoyloxy- and α-siloxyallyl-carbanions was investigated using a Brook rearrangement-mediated S E 2′ protonation in γ-carbamoyloxy- and γ-siloxy-α-silylallyl alcohols. We proposed a hypothesis that the reactio...
作者:Giorgio Contini , Paola Gori , Fabio Ronci ...
来源:[J].Rendiconti Lincei(IF 0.915), 2013, Vol.24 (3), pp.251-257Springer
摘要:Abstract(#br)The chirality transfer control from a single molecule to the surface molecular superstructures and to the substrate is a challenging and important aspect of two-dimensional chiral nanostructures for tailoring the functionality of molecular––metal interfaces. How...
作者:Dr. Dainis Kaldre , Dr. Boris Maryasin , Daniel Kaiser ...
来源:[J].Angewandte Chemie International Edition(IF 13.734), 2017, Vol.56 (8), pp.2212-2215Wiley
摘要:... This is the first example of a general 1,4‐chirality transfer from sulfur to a carbon stereocenter through a sulfonium [3,3]‐sigmatropic rearrangement. This reaction delivers α‐arylated thioesters and amides under mild conditions in an atom‐economical manner. The pr...
作者:Dr. Graeme Barker , Dr. David G. Johnson , Dr. Paul C. Young ...
来源:[J].Chemistry – A European Journal(IF 5.831), 2015, Vol.21 (39), pp.13748-13757Wiley
摘要:Abstract(#br)Gold(I)‐catalysed direct allylic etherifications have been successfully carried out with chirality transfer to yield enantioenriched, γ‐substituted secondary allylic ethers. Our investigations include a full substrate‐scope screen to ascertain substituent e...
作者:Mojca Cepic
来源:[J].Molecular Crystals and Liquid Crystals(IF 0.53), 2007, Vol.475, pp.151-161Taylor & Francis
摘要:The overview of chiral levels and the chirality transfer between them. The phenomena associated with the chirality transfer found and/or theoretically predicted for achiral polar smectics are discussed. The chiroclinic effect is presented as an example in more details.
作者:Hirofumi Morimoto , Toshiya Masuda
来源:[J].Synthesis(IF 2.5), 2019, pp.-Thieme
摘要:... The strategy takes advantage of [1,3]-chirality transfer from a chiral primary alcohol equivalent through an allyl cyanate-to-isocyanate rearrangement. This approach was employed in an efficient eight-step synthesis of the marine natural product, (+)-geranyllinaloisocyanide, ...
作者:Stacey Webster , Daniel R. Sutherland , Dr. Ai‐Lan Lee
来源:[J].Chemistry – A European Journal(IF 5.831), 2016, Vol.22 (51), pp.18593-18600Wiley
摘要:Abstract(#br)Gold(I)‐catalysed intermolecular hydroalkoxylation of enantioenriched 1,3‐disubstituted allenes was previously reported to occur with poor chirality transfer due to rapid allene racemisation. The first intermolecular hydroalkoxylation of allenes with efficient chirality transfer...
作者:Nitin T. Patil , Léopold Mpaka Lutete , Naoko Nishina ...
来源:[J].Tetrahedron Letters(IF 2.397), 2006, Vol.47 (27), pp.4749-4751Elsevier
摘要:... As an example of chirality transfer, it is shown that aminoallene 1a (96% ee), synthesized from ( S )-(−)-1-octyn-3-ol, was converted into the corresponding pyrrolidine 2a (94% ee) in 99% yield.

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