CO2 conversion to isocyanate via multiple N–Si bond cleavage at a bulky uranium(III) complex
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Upon treatment with Me2TiCl2 or Me3Al in the presence of TiCl4, an H atom at the olefinic 4-position is replaced by a Me group. Terminal homoallyl alcs. afford E isomers. If the double bond is internal, the C chain (at the other side of the OH group) gives ...
A straightforward sequence of reactions allowed the conversion of D-(+)-mannose and D-(+)-ribono-1,4-lactone into erythro-(2S,3R)- and threo-(2S,3S)-sphingosine, resp. [on SciFinder (R)] ...
(Z)-EtOCH:CHLi (I) reacts with carbonyl compds. as an acetaldehyde anion equiv. The exceptional stability of I is attributed mainly to an intramol. solvation mechanism. That the cis disposition of the Li and O atoms about the double bond, requisite of the ...
The recombination of I atoms in the presence of NO was studied by laser flash photolysis in the inert gas He, at pressures between 1 and 200 atm and at temps. from 320-440 DegK. The elementary steps of the complex mechanism of the recombination were resolv ...
