Electrophilic attack at allylsilanes. A quantitative determination of the β-silyl effect

The relative reactivities of allylsilanes and alkenes towards diarylmethyl cations have been determined by competition experiments. Introduction of a β-trimethylsilyl group increases the reactivity of propene towards the diphenylmethyl cation by a factor of 30700

Synthesis of γ-lactones from alkenes employing p-methoxybenzyl chloride as +CH2---CO−2 equivalent

The ZnCl2 catalyzed reaction of p-methoxybenzyl chloride with alkenes yields the 1:1 addition products 3, which are converted into the γ-lactones 4 via Ru(VIII) catalyzed oxidative degradation of the aromatic ring

Relative reactivities of alkenes toward the diphenylmethyl cation

The relative reactivities of alkyl and phenyl substituted alkenes toward diphenylmethyl chloride/ZnCl2/Et2O in dichloromethane at −78°C have been determined by competition experiments. The transition state structure is discussed

MRI raw data: T2 weighted TSE scan of a healthy volunteer (4 channel head coil)

T2 weighted TSE Scan of the brain of a healthy volunteer, 4 channel coil Sequence parameters: TR 5000ms TE 99ms Turbo Factor 10 Matrix Size 256x256 In Plane Resolution 0.9mmx0.9mm Slice Thickness 4mm 3T System 4 channel head coil Florian Knoll ([email protected]) Date: 2.2.201

MRI raw data: T2 weighted TSE scan of a healthy volunteer (32 channel head coil)

T2 weighted TSE Scan of the brain of a healthy volunteer, 32 channel coil Sequence parameters: TR 5000ms TE 99ms Turbo Factor 10 Matrix Size 256x256 In Plane Resolution 0.9mmx0.9mm Slice Thickness 4mm 3T System 32 channel head coil Florian Knoll ([email protected]) Date: 2.2.201