An organo-catalyzed photoelectrochemical alkene radical cation-triggered semipinacol rearrangement for the ring-contraction of arylidenecyclobutanols was developed, which enables access to diverse cyclopropanes under mild conditions.
Owing to their balanced ring strain and the high regioselectivity of their reactions, oxetanes have emerged as versatile building blocks for heterocycle synthesis.
This review provides a comprehensive summary of the origin, activities, and biosynthesis of spirooxindole-containing alkaloids derived from a variety of organisms, including actinomycetes, cyanobacteria, fungi, plants, and invertebrates.
Chiral BINAM-derived sulfide and boron trifluoride etherate cocatalyzed enantioselective electrophilic selenylation/semipinacol rearrangement of 1-(1-arylvinyl)cyclobutanols was developed for the first time.
This review provides a complete overview of the advances in the semipinacol rearrangement-mediated 1,2-group migration onto metal carbene centers which were reported in the past decades.