2.4 Trofimov Synthesis of Pyrroles.
A one pot synthesis of pyrroles and N-vinylpyrroles from ketones and acetylenes (via the ketoximes) in a KOH–DMSO superbase system (the Trofimov reaction [1-3]) is used ever more widely thanks to its simplicity and the availability of the starting materials.
Mechanism of pyrrole synthesis from ketoximes and acetylene.

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Trofimov Pyrrole Synthesis functionalized by directed ..
Various dl- and meso-tetraarylethanes were diastereoseletively synthesized by this new protocol, where base plays the role of the principle modulator: Grignard reagents selectively provide the C2 isomers, whereas KOt-Bu promotes the formation of the meso-tetraarylethanes.
Pyrrole synthesis - Organic chemistry
Dendralenes are cross-conjugated hydrocarbons that quickly became attractive starting materials for organic synthesis. The following example shows a diene-transmissive Diels–Alder addition of DMAD to dendralene . The process could be stopped at the mono adduct stage , but it could also be performed, under harsher conditions, to yield directly the 2:1 adduct (Scheme []).[]

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2016-10-31 · A Paperback edition by Boris A
DMAD is often used in natural product synthesis in key transformation steps. A recent example presenting a stereoselective synthesis of marine sesterterpenes and included a Diels–Alder addition with DMAD (Scheme []).[]