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Articles you may be interested in Trends in C-O and C-N bond formations over transition metal surfaces: An insight into kinetic sensitivity in catalytic reactionsThe flash photolysis technique has been extended to measurement of absolute concentrations and kinetics of small molecules h~ving fine-lined absorption spectra. The rates of disappearance of CN radicals in cyanogen, cyanogen chlonde, hydrogen, and hydrocarbons have been determined. The disappearance of CN in cyanogen was found to obey the expression d(CN) /dt= -k (CN) (C 2 N2), where k= 7.3X10 7 e--c2100/RT liters/ mole sec over the temperature range 301 0 to 447°K.

A SYNTHESIS OF ETHYL L-ALKYLCYANOACETATES 4791corresponding fully aromatic fluoranthene deriva-anthene, S19-dimethylfluoranthene and ethyl 10-tives. In this manner were prepared fluoran-methyl-7-fluoranthenecarboxylate. thene, 7-methylfluoranthene, 8-methyL0uor-LOS ANGELES, CALIF. RECEIVED APRIL 3, 1950[CONTRIBUTION FROM

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