13286-90-3Relevant academic research and scientific papers
EXCRETION OF S- AND O-METHYL ESTERS AND OTHER VOLATILE COMPOUNDS BY OCHROMONAS DANICA
Juettner, Friedrich,Wiedemann, Evi,Wurster, Karl
, p. 2185 - 2188 (1982)
The formation of volatile excretion was studied in axenic cultures of Ochromonas danica.Under microaerobic conditions in the light, an accumulation of O- and S-methyl esters, alcohols, dimethyldisulphide was observed in the medium.Most of the compounds are structurally derived from the amino acids methionine, valine , leucine and isoleucine.The excreted volatile compounds, particularly the methyl thioesters, were rapidly metabolized in the dark.Key Word Index - Ochromonas danica; metabolism; volatile excretion products; O-esters; S-esters; microaerobiosis.
Molecular Addition Compounds. 17. Borane and Chloroborane Adducts with Organic Sulfides for Hydroboration
Zaidlewicz, Marek,Kanth, Josyula V. B.,Brown, Herbert C.
, p. 6697 - 6702 (2007/10/03)
The following sulfides have been examined as borane carriers in comparison with dimethyl sulfide and 1,4-oxathiane: tert-butyl methyl sulfide, isoamyl methyl sulfide, ethyl isoamyl sulfide, tert-butyl isoamyl sulfide, diisoamyl sulfide, tetrahydrothiophene, tetrahydro-thiopyran, thioanisole, 3-ethylthiotetrahydrofuran, bis(3-tetrahydrofuryl) sulfide, and bis(2-methoxyethyl) sulfide. Their complexing ability toward borane increases in the following order: thioanisole 3, is stable over prolonged periods at room temperature. The sulfide can be recovered from hydroboration-oxidation products by distillation. Consequently, diisoamyl sulfide is a new promising borane carrier. Bis(2-methoxyethyl) sulfide, easily synthesized from the low cost thiodiethanol, is three times more soluble in water than 1,4-oxathiane. Its borane adduct is 6.0 M in BH3 and can substitute for more expensive borane-1,4-oxathiane in hydroboration reactions. Applications of these new borane adducts in the synthesis of mono- and dichloroborane adducts was also studied. The equilibrium ratios observed for the new chloroborane adducts were similar to that observed for dimethyl sulfide adducts. However, the hydroboration of 1-octene with these new chloroborane adducts are much faster than the corresponding adducts of dimethyl sulfide, which are currently used extensively.
