31151-39-0Relevant articles and documents
Molybdenum(II)-catalyzed allylic substitution
Malkov, Andrei V.,Baxendale, Ian,Mansfield, Darren J.,Kocovsky, Pavel
, p. 4895 - 4898 (1997)
The new Mo(II) triflate complex 5 has been found to catalyze the C-C bond forming allylic substitution with silyl enol ethers derived from β-dicarbonyls (e.g., 6 + 12 → 14) and from simple ketones (e.g., 6 + 13 → 16) as nucleophiles.
Photoredox Imino Functionalizations of Olefins
Davies, Jacob,Sheikh, Nadeem S.,Leonori, Daniele
supporting information, p. 13361 - 13365 (2017/10/17)
Shown herein is that polyfunctionalized nitrogen heterocycles can be easily prepared by a visible-light-mediated radical cascade process. This divergent strategy features the oxidative generation of iminyl radicals and subsequent cyclization/radical trapping, which allows the effective construction of highly functionalized heterocycles. The reactions proceed efficiently at room temperature, utilize an organic photocatalyst, use simple and readily available materials, and generate, in a single step, valuable building blocks that would be difficult to prepare by other methods.
Cyclopentanone as a cation-stabilizing electron-pair donor in the calcium-catalyzed intermolecular carbohydroxylation of alkynes
Stopka, Tobias,Niggemann, Meike
supporting information, p. 1437 - 1440 (2015/03/30)
Although they have been used as reactivity-controlling additives in cationic polymerizations for decades, Lewis basic electron pair donor (ED) compounds were never used for the stabilization of cationic intermediates in transformations of small molecules. As such an ED, cyclopentanone proved highly efficient for the stabilization of allyl and vinyl cations in combination with our calcium-based catalyst system. Therefore, the first general transition-metal-free intermolecular carbohydroxylation of alkynes with allyl and propargyl alcohols was realized.
