Chiral homoallylic aminesAqueous reaction(+)-Crispine A(−)-ConiineAn Efficient method for the syntheses of N-tert-butanesulfinyl aldimines in water was developed using Amberlyst-15 as catalyst. Subsequently, chiral homoallylic amines were synthesized in one pot from aldehydes by combining with ...
实验操作: General Procedure for Borylation of N-tert-Butanesulfinyl Aldimines. To a 1 dram vial charged with PCy3·HBF4 (2.2 mg, 6.0 μmol, 1.2 mol %) and equipped with a magnetic stir bar were added toluen...
实验操作: General Procedure for Borylation of N-tert-Butanesulfinyl Aldimines. To a 1 dram vial charged with PCy3·HBF4 (2.2 mg, 6.0 μmol, 1.2 mol %) and equipped with a magnetic stir bar were added toluene (0.10 mL), aqueous CuSO4 (0.20 mL, 30 mM, 6.0 μmol, 1.2 mol %), a...
L B Schenkel,J A Ellman.Self-condensation of N-tert-butanesulfinvi aldimines: Application to the rapid asymmetric synthesis of biologically important amine-containing compounds. Organic Letters . 2004Schenkel, L. B. & Ellman, J. A. (2004). Self-Condensation of N-tertbutanesulfinyl Aldimines...
Stereoselective Synthesis of1,2-Disubstituted β-Amino Alcohols byNucleophilic Addition to N-tert-Butanesulfinyl α-Alkoxyaldimines. Evans, J. W,Ellman, J. A. The Journalof Organic Chemistry . 2003Jared W. Evans,Jonathan A. Ellman.Stereoselective Synthesis of 1. 2-Disubstituted β-Amino ...
Preparation of bisindolylalkanes from N- tert-butanesulfinyl aldimines A series of bisindolylalkanes were synthesized by nucleophilic addition reactions of indole with N- tert-butanesulfinyl aldimines in good to excellent yiel... B Ke,Y Qin,Q He,... - 《Cheminform》 被引量: 237发表: 2005...
General Procedure for Borylation of N-tert-Butanesulfinyl Aldimines. To a 1 dram vial charged with PCy3·HBF4 (2.2 mg, 6.0 μmol, 1.2 mol %) and equipped with a magnetic stir bar were added toluene (0.10 m...
The reaction of chiral N-tert-butanesulfinyl aldimines with β-keto acids under basic conditions at room temperature proceeds with high levels of diastereocontrol, leading to β-amino ketones in high yields. Based on DFT calculations, an eight-membered cyclic transition state involving coordination ...
Crystal structure of tert-butyl(+)-(1S,5R,9S,4'S)-9-(2',2'-dimethyl-1',3'-dioxolan-4'-yl)-3,6-dioxo-2-oxabicycl[3.3.1]nonane-5-carboxylate, C18H26O7 Crystal structure of dimethyl(3aR*,4S*,8aS*)-decahydro-8-methylidene- 3,5-(2-oxapropan-diylidene)azulene-3a,4-dicarboxy...
fluorine and compoundsimines and Schiff basesMannich additionstertiary enolatesThis work is solely focused on the development of optimized procedures for preparation of various (S)- N - tert -butanesulfinyl-aldimines bearing CHF2, CClF2, CBrF2, CIF2, C2F5, C3F7, C4F9, C4HF8, C5F11 and ...