A mild and facile Peterson olefination has been developed employing low catalyst loading of the Brønsted acid HNTf 2 . The reactions are typically performed at room temperature, with the reaction tolerant to a range of useful functionalities. Furthermore, we have extended this methodology to the synthesis of enynes.

A facile one-pot, microwave-assisted synthesis of novel functionalized arylenedioxythiophenes as promising building blocks for conjugated polymers with tuneable electronic properties is presented.

The 4--photocyclization of a range of 1,2dihydropyridazines is described. The bicyclic 1,2-diazetidine products were generally obtained in high yields, and the process was successfully scaled up to multigram scale. The key bicyclic 1,2-diazetidines are versatile synthetic intermediates and were easily converted into a range of novel derivatives, including functionalized 1,2diazetidines, cyclobutenes, cyclobutanes, and dienes.

An aza-Peterson olefination methodology to access 1,3-dienes and stilbene derivatives from the corresponding allyl- or benzyl trimethylsilanes is described. Silanes can be deprotonated using Schlosser’s base and added into N-phenyl imines or ketones to directly give the desired products in high yields.

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