Werlé C1, Goddard R1, Fürstner A2.
Angew Chem Int Ed Engl. 2015 Dec 14;54(51):15452-6. doi: 10.1002/anie.201506902. Epub 2015 Nov 4.The dirhodium carbene derived from bis(4-methoxyphenyl)diazomethane and [Rh(tpa)4 ]⋅CH2 Cl2 (tpa=triphenylacetate) was characterized by UV, IR, and NMR spectroscopy, HRMS, as well as by X-ray diffraction. The isolated complex exhibits prototypical rhodium carbene reactivity in that it cyclopropanates 4-methoxystyrene at low temperature. Experimental structural information on this important type of ... Read More