77 research outputs found
The First Synthesis of an Optically Active Molecular Bevel Gear with Only Two Cogs on Each Wheel (SYNTHETIC ORGANIC CHEMISTRY-Fine Organic Synthesis)
Get PDFBoth enantiomers of the molecular bevel gear 1 having only two cogs on each wheel consisting of 8,8'-disubstituted 1,1'-binaphthyl ether were synthesized for the first time
The Chemistry on Diterpenoids in 1979. Part-I (Special Issue on Polymer Chemistry, Including Organic Chemistry, XV)
Get PDF
A Chiral Nonracemic Enolate with Dynamic Axial Chirality: Direct Asymmetric Alkylation of α-Amino Acid Derivatives (SYNTHETIC ORGANIC CHEMISTRY-Fine Organic Synthesis)
Get PDFThe structure of enolate was long believed to be achiral. However, a chiral nonracemic enolate with a racemization barrier of 16 kcal/mol at -78 oC was found to be the crucial intermediate for the asymmetric -methylation of 1 to give 2 in 81% ee and 96% yield. The asymmetric -methylation occurs in other amino acid derivatives (Val, Leu, Trp, His, Tyr, Dopa) in 78-93% ee
Sequence-specific coloration of dipeptides by functionalized phenolphthalein in aqueous media / Total synthesis of a cell cycle regulator, spirotryprostain B / Enantioselective acceleration in kinetic resolution of recemic alchols with a chiral nucleophilic catalyst (SYNTHETIC ORGANIC CHEMISTRY - Fine Organic Synthesis)
Get PDF
<Abstract of annual report>Conjugate Addition of Acyloxy Groups to Alkynylphenyliodonium Tetrafluoroborates under Both Basic and Acidic Conditions. : Synthesis of α-Acyloxy Ketones.
Get PDF
<Abstract of annual report>Synthesis, Structure, and Self-Oxidation of Alkynyl(phenyl)iodonium Periodates.
Get PDF- …
