The stimulating effect of humic acids on the growth biomass test object was established. А series positive effects seedlings proposed. correlation dependence toxicants cockweed its composition revealed. It shown that light ends oil has a minimal toxic due to increased volatility, in contrast petroleum. detoxifying ability peat established separately and together with oil-degrading microorganism...

(1) The characteristics of the lipids (acetone-soluble lipid, lecithin, cephalin and sphingolipid) obtained from barracuda, Sphyraena pinguis GUNTHER, were studied from the view point of fat metabolism of fish. (2) Forty-one fresh sample fish caught in the Komekami fishing ground near Odawara City (west part of Kanagawa Prefecture, Japan) on the 4th of October, 1959, were extracted with acetone...

reactions of n-isocyaniminotriphenylphosphorane with cyclopentanone have been studied in the presence of aromatic carboxylic acids and primary amines, proceeds smoothly at room temperature under neutral conditions to afford sterically congested 1,3,4-oxadiazole derivatives by an intramolecular aza-wittig cyclization in ch2cl2 in excellent yields. the structures of the products were deduced from...

Reactions of N-isocyaniminotriphenylphosphorane with cyclopentanone have been studied in the presence of aromatic carboxylic acids and primary amines, proceeds smoothly at room temperature under neutral conditions to afford sterically congested 1,3,4-oxadiazole derivatives by an intramolecular Aza-Wittig cyclization in CH2Cl2 in excellent yields. The structures of the products were deduced from...

Biocatalysis is a fast developing field in which an enzyme's natural capabilities are harnessed or engineered for synthetic chemistry. The enzyme PatG is an extremely promiscuous macrocyclase enzyme tolerating both non-natural amino acids and non-amino acids within the substrate. It does, however, require a proline or thiazoline at the C-terminal position of the core peptide which means the fin...

A synthetic approach for the preparation of a new class of highly conjugated unnatural α-amino acids bearing a 5-arylpyrazole side-chain has been developed. Horner-Wadsworth-Emmons reaction of an aspartic acid derived β-keto phosphonate ester with a range of aromatic aldehydes gave β-aryl α,β-unsaturated ketones. Treatment of these with phenyl hydrazine followed by oxidation allowed the regiose...