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Exciton chirality method in vibrational circular dichroism.
TLDR
This method can analyze various molecules whose absolute configuration is difficult to determine by other spectroscopic methods, but also it can significantly enhance VCD signals. Expand
Genome Mining for Sesterterpenes Using Bifunctional Terpene Synthases Reveals a Unified Intermediate of Di/Sesterterpenes.
TLDR
The Aspergillus oryzae heterologous expression system was applied to functionally characterize cryptic bifunctional terpene synthase genes found in fungal genomes and the sesterfisherol synthase gene (NfSS) from Neosartorya fischeri was identified. Expand
Effects of central metal ions on vibrational circular dichroism spectra of tris-(beta-diketonato)metal(III) complexes.
TLDR
The VCD spectrum can probe the effect of the central metal ion on interligand cooperative vibration modes and implies that the energy levels of C-O stretches are delicately affected by the kind of central metal ions. Expand
Chiral cruciferous phytoalexins: preparation, absolute configuration, and biological activity.
TLDR
Interestingly, the absolute configurations of natural (S)-(-)-spirobrassinin (1) and (R)-(+)-1-methoxyspirobrassin (2) were opposite of each other, even though their structures are almost similar, with the exception of an N- methoxy group. Expand
Short synthesis of berkeleyamide D and determination of the absolute configuration by the vibrational circular dichroism exciton chirality method.
TLDR
The first synthesis of (±)-berkeleyamide D has been accomplished and the absolute configurations of both enantiomers of ber Berkeleyamide D were determined by the vibrational circular dichroism exciton chirality method. Expand
Magnetic properties of Sr2Pd1−xMxO3 (M=Co, Cu)
Abstract The crystallographic and magnetic properties of Sr 2 (Pd 1− x M x )O 3 (M=Co, Cu) were studied. Sr 2 (Pd 1− x Co x )O 3 ( x ≤0.25) and Sr 2 (Pd 1− x Cu x )O 3 (0≤ x ≤1) have an orthorhombicExpand
Structures of Spiroindicumides A and B, Unprecedented Carbon Skeletal Spirolactones, and Determination of the Absolute Configuration by Vibrational Circular Dichroism Exciton Approach.
Spiroindicumides A (Ia) and B (Ib), novel spirolactone polyketides, are isolated from a filamentous fungus, Chaetomium indicum, cultivated in the presence of a histone deacetylase inhibitor.
Enantioselective Total Synthesis of (+)-Hinckdentine A via a Catalytic Dearomatization Approach.
TLDR
The key steps to the first asymmetric synthesis involved enantioselective dearomative cyclization of an achiral N-acyl indole that allowed for the efficient construction of the key polycyclic indoline intermediate with a crucial tetrasubstituted stereogenic carbon center. Expand
Enantioselective Rh- or Ir-catalyzed Directed C(sp3)–H Borylation with Phosphoramidite Chiral Ligands
Enantioselective heteroatom-directed C(sp3)–H borylation reactions of 2-aminopyridines and 2-alkylpyridines with Rh- and Ir catalytic systems using commercially available chiral monophosphineExpand
Absolute configuration of actinophyllic acid as determined through chiroptical data.
TLDR
The assigned 15R,16S,19S,20S,21R-configuration of (-)-1 is consistent with a proposed biosynthetic pathway and was characterized as the methyl ester of naturally occurring (-)-2. Expand
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