Highly Selective Hydrolytic Kinetic Resolution of Terminal Epoxides Catalyzed by Chiral (salen)Co<sup>III</sup> Complexes. Practical Synthesis of Enantioenriched Terminal Epoxides and 1,2-Diols
作者:Scott E. Schaus、Bridget D. Brandes、Jay F. Larrow、Makoto Tokunaga、Karl B. Hansen、Alexandra E. Gould、Michael E. Furrow、Eric N. Jacobsen
DOI:10.1021/ja016737l
日期:2002.2.1
The hydrolytickineticresolution (HKR) of terminal epoxides catalyzed by chiral (salen)Co(III) complex 1 x OAc affords both recovered unreacted epoxide and 1,2-diol product in highly enantioenriched form. As such, the HKR provides general access to useful, highly enantioenriched chiral building blocks that are otherwise difficult to access, from inexpensive racemic materials. The reaction has several
Two-directional synthesis of the non-adjacent bis(tetrahydrofuran) core of cis-sylvaticin
作者:Kevin J. Quinn、Kaylie E. Gage、Caroline M. Stanners、Colin O. Hayes、Kathleen E. Shanley、Shalise M. Couvertier
DOI:10.1016/j.tetlet.2013.11.032
日期:2014.1
non-adjacent bis(tetrahydrofuran) core of cis-sylvaticin in seven steps and 24% overall yield from (2R,3S)-1,2-epoxy-4-penten-3-ol is reported. A strategy involving assembly of the central 1,4-diol unit by silicon-tethered ring-closing metathesis and subsequent two-directional functionalization, including establishment of the cis/threo stereochemical relationships of the tetrahydrofuran rings by Sharpless
七步合成C 2对称,不相邻的顺式香豆素双(四氢呋喃)核,从(2 R,3 S)-1,2-环氧--4-戊烯-3-醇中获得24%的总收率被报道。由硅-拴系的闭环复分解和随后的双向官能化,包括建立的涉及中央1,4-二醇单元的组件A策略顺式/苏式通过Sharpless不对称二羟基化的四氢呋喃环的立体化学关系/ S Ñ 2环化,被雇用。
BUBEL O. N.; TISHCHENKO I. G.; GRINKEVICH O. A.; ABRAMOV A. F., XIMIYA GETEROTSIKL. SOEDIN., 1980, HO 4, 468-471
作者:BUBEL O. N.、 TISHCHENKO I. G.、 GRINKEVICH O. A.、 ABRAMOV A. F.
DOI:——
日期:——
MELLO, ROSSELLA;CASSIDEI, LUIGI;FIORENTINO, MICHELE;FUSCO, CATERINA;HUMME+, J. AMER. CHEM. SOC., 113,(1991) N, C. 2205-2208