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Thermodynamic, spectroscopic, and computational evidence for the irreversible conversion of β- to α-endosulfan
TLDR
Evidence from differential scanning calorimetry (DSC) and nuclear magnetic resonance (NMR) experiments combined with computational chemistry calculations was used to propose a molecular mechanism for the corresponding conformational changes that occur in this process.
Nematode-Antagonistic Trichothecenes from Fusarium equiseti
TLDR
Two trichothecene compounds were isolated that inhibited egg hatch and immobilized second-stage juveniles of this nematode, the first published report of these compounds affecting plant-parasitic nematodes.
Silyl fluoride electrophiles for the enantioselective synthesis of silylated pyrrolidine catalysts.
TLDR
The activity and enantioselectivity of a new tert-butyldiphenylsilylpyrrolidine catalyst has been demonstrated for various asymmetric Michael reactions at 5 mol % catalyst loading and affords up to 99% ee for asymmetricMichael reactions with aldehydes and nitro-olefins.
Four psychrotolerant species with high chemical diversity consistently producing cycloaspeptide A, Penicillium jamesonlandense sp. nov., Penicillium ribium sp. nov., Penicillium soppii and
TLDR
Cycloaspeptide A is reported here for the first time from the two novel Penicillium species and two known psychrotolerant species with high chemical diversity, Penicllium soppii and Penicilium lanosum.
Facile activation of dihydrogen by an unsaturated heavier main group compound.
TLDR
These reactions represent the first direct addition of hydrogen to a closed shell unsaturated main group compound under ambient conditions.
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