91636-35-0Relevant academic research and scientific papers
Preparation of Functionalized Diaryl- and Diheteroaryllanthanum Reagents by Fast Halogen–Lanthanum Exchange
Benischke, Andreas D.,Anthore-Dalion, Lucile,Berionni, Guillaume,Knochel, Paul
supporting information, p. 16390 - 16394 (2017/11/28)
Aryl and heteroaryl halides (X=Br, I) undergo a fast and convenient halogen–lanthanum exchange with nBu2LaMe, which leads to functionalized diaryl- and diheteroaryllanthanum derivatives. Subsequent trapping reactions with selected electrophiles, such as ketones, aldehydes, or amides, proceeded smoothly at ?50 °C in THF, affording polyfunctionalized alcohols and carbonyl derivatives. Kinetic competition experiments revealed a similar reactivity trend as for Br/Mg exchange, but 106-times higher rates, making it comparable to Br/Li exchange.
Thiocyanate as a Versatile Synthetic Unit : Efficient Conversion of ArSCN to Aryl Alkyl Sulfides and Aryl Thioesters.
Toste, F. Dean,LaRonde, Frank,Still, Ian W. J.
, p. 2949 - 2952 (2007/10/02)
Treatment of aryl thiocyanates with 2.3 equivalents of SmI2 results in the formation of an intermediate samarium(III) sulfide which can be trapped with a variety of electrophilic reagents.
