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Weather Europe, Satellite Weather Europe, Weather Forecast, Rainfall, Clouds, Sun in Europe - Source: SAT24.com

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Weather Europe, Satellite Weather Europe, Weather Forecast, Rainfall, Clouds, Sun in Europe - Source: SAT24.com

A practical method for ring opening of various indoles and benzofurans with concomitant stereoselective silylation using read-ily generated (diphenyl-tert-butylsilyl)lithium to provide ortho-β-silylvinyl anilines or phenols is presented. Dearomatization of the heteroarene core proceeds in the absence of any transition metal catalyst via silyl anion addition and subsequent stereoselective β-elimination. DFT calculations provide insights into the mechanism. Functionalizing C-X bond cleavage in heteroarenes is rare and generally requires transition metal catalysis.

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Education at a Glance: OECD Indicators is the authoritative source for accurate and relevant information on the state of education around the world. It provides data on the structure, finances, and performance of education systems in the OECD’s member countries, as well as a number of partner countries.