Azokupplung mit Cyclopropyldiazonium‐lonen

Abstract

bei diesen Temperaturen der Oxiranring des Radikals ( 1 ) offnet. Die analoge Ringoffnung von (3) unter Bildung des Formylmethyl-Radikals ist bei vergleichbaren Bedingungen nicht zu beobachten15'. Eingegangen am 28. August I973 [Z 9091 [I] A.

Deuterium isotope effects for migrating and nonmigrating groups in the solvolysis of neopentyl-type esters

“…this is well within the range of 1.20-1.30 found by Schubert and Henson. 4 In addition, if it is assumed that the isotope effects per D, rather than per group, were constant so that the methylene group isotope effects were equal to the two-thirds power of the methyl effects, the calculated values for 7?CD3CH3, 0.927, 7?CH3CD3, 1.177, (/?Cd3CHj)27?ch3CD3, 1.011, and tfCH3CDV7?CD3CH3, 1.270 are still the same, within the range of experimental error.…”

Pathways from nitrosooxazolidones to vinyl azides

“…These values and their differences are listed in Table I with the extinction coefficients observed for 3a, and the corresponding equilibrium constants. 6 Evidently, for 3a 4,…”