The cycloaddition reactions between ketene or substituted ketenes andcyelopentadiene have been studied theoretically by means of the semiempirical AMImethod.Thr
Highly substituted n-atkyl celluloses with sidechains 3 to 10 carbon atoms long have been prepared from cellulose acetate, sodium hydroxide and n-alkyl bromides
A reliable method is described for the detection of amitoride,triamterene.canrenone and spironolactone in human urine using GC-MS analysis aftertrimethytsitytat