Cyclopropanes Derived from Diaryldiazomethanes. I. Amino Alcohols of the cis Series¹

Exchange effects and cidep

“…Bordat and Tsvetkov found (k~. + kr,~) = 6.6 x 10 ~ M-is -1 for DQ'-and RNO" [119], which is clearly too large to be anything but dominated by the ke, term. Clearly, these two mechanisms are coupled, and the relative contributions depend on the reactivity of the radical pair.…”

Chemical modification of materials by reaction with diaryl diazomethanes

“…In order to enable a general approach suitable for the introduction of carboxylate, amine and alkyl substituents onto as wide a range of substrates as possible, we used the known 4,4 0 -(diazomethylene)bis(methoxybenzene) 1 as the carbene precursor (Scheme 1), 11 since preliminary experiments had indicated that the derived carbene had a high level of reactivity suitable for insertion onto diverse material types. Polystyrene (PS), silica and silicon were found to be particularly useful as substrates, since these materials have a high surface area and are suitable for downstream analysis.…”

Bis(4‐methylthiazolyl)isoindoline (4‐Mebti) Complexes of Palladium: Cationic [PdII(4‐Mebti)L]+Species with a L = Neutral Group XIV or Group XV Donor Ligand

“…The preparation of the cationic complexes was performed using standard Schlenk techniques. [Pd(4‐Mebti)Cl] 1 ,9 sodium tetrakis(3,5‐bis(trifluoromethyl)phenyl)borate (NaB(Ar F ) 4 12), trimethylphosphane and triethylphosphane (PMe 3 and PEt 3 13), trimethylstibane (SbMe 3 14,15), methylisocyanide (MeNC16), diazomethane (CH 2 N 2 17), and bis(4‐methylphenyl)diazomethane ((4‐MeC 6 H 4 ) 2 CN 2 18) were prepared according to literature methods. NMR spectra were recorded with a Bruker Avance 300 or DRX 400 spectrometer, respectively.…”