Two-phase reactions in the chemistry of carbanions and halocarbenes. A useful tool in organic synthesis
Abstract
Kinetic isotope effects for the C-H activation step in phase-transfer halogenations of alkanes
Within the scope of phase-transfer halogenations (Br and I) of alkanes, significant H/D kinetic isotope effects (KIE = 4-5) indicate that hydrogen abstraction is rate limiting. The excellent agreement of computed and experimentally determined H/D KIE as well as trapping experiments support the involvement of trihalomethyl radicals in the activation step.
Über das 1.3.5‐Triformyl‐benzol (Benzol‐trialdehyd‐(1.3.5)
Mehrere Synthesen des 1.3.5-Triformyl-benzols sowie die Darstellung charakteristischer Derivate, u. a. verschiedener Triformazane, werden mitgeteilt.