Ruthenium-Catalyzed Transformation of Aryl and Alkenyl Triflates to Halides
摘要:
Aryl triflates were transformed to aryl bromides/iodides simply by treating them with LiBr/NaI and [Cp*Ru(MeCN)(3)]OTf. The ruthenium complex also catalyzed the transformation of alkenyl sulfonates and phosphates to alkenyl halides under mild conditions. Aryl and alkenyl triflates undergo oxidative addition to a ruthenium(II) complex to form eta(1)-arylruthenium and 1-ruthenacyclopropene intermediates, respectively, which are transformed to the corresponding halides.
Ethoxycarbonylnitrene addition to vinyl chlorides. Synthesis and thermal rearrangement of α-chloroaziridines
作者:Lucio Pellacani、Franca Persia、Paolo A. Tardella
DOI:10.1016/s0040-4039(00)71167-1
日期:1980.1
The addition of ethoxycarbonylnitrene to vinyl chlorides gives N-ethoxycarbonyl-α-chloroaziridines which undergo an easy rearrangement mainly or exclusively to N-ethoxycarbonyl-2-chloro-2-alkenylamines.
Aryl triflates were transformed to aryl bromides/iodides simply by treating them with LiBr/NaI and [Cp*Ru(MeCN)(3)]OTf. The ruthenium complex also catalyzed the transformation of alkenyl sulfonates and phosphates to alkenyl halides under mild conditions. Aryl and alkenyl triflates undergo oxidative addition to a ruthenium(II) complex to form eta(1)-arylruthenium and 1-ruthenacyclopropene intermediates, respectively, which are transformed to the corresponding halides.
PELLACANI L.; PERSIA F.; TARDELLA P. A., TETRAHEDRON LETT., 1980, 21, NO 51, 4967-4970