A one‐step procedure for the self‐switchable block copolymerization of monomer mixtures of epoxides, cyclic anhydrides, and lactide (LA) was developed by using simple organocatalysts without an external stimulus. This multicomponent polymerization bridges two catalytic cycles involving ring‐opening alternating copolymerization of epoxides with anhydrides and ring‐opening polymerization (ROP) of LA, in which the presence/absence of anhydrides in mixed feedstocks switched the ROP of LA off/on. The self‐switchable terpolymerization showed distinct noncoordinating and living nature, as well as perfect chemoselectivity. Different combinations of epoxides, anhydrides, and initiators enabled the generation of a variety of new block polyester polyols.

Simple and low-toxic Lewis pairs were introduced for ring-opening alternating copolymerization of anhydrides and epoxides to prepare diversified polyesters.

The phosphoranimine, Cl(3)P=NSiMe(3), was prepared using a new, high-yield (>80%), one-pot synthesis via oxidation of the chlorophosphine, Cl(2)PN(SiMe(3))(2) with SO(2)Cl(2) in ether. Cl(3)P=NSiMe(3) is a valuable monomeric precursor in the synthesis of well-defined polyphosphazenes.

A metal-free, highly regioselective and stereoregular ring-opening alternating copolymerization of monosubstituted epoxides with tricyclic anhydrides was achieved to yield well-defined polyesters.

Biomass conversion to fuels requires elimination of oxygenated functionalities along with formation of C–C bonds to help keeping the largest possible amount of carbon in the fuel range (e.g. C7–C15).

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Die Stetter‐Reaktion nutzt eine umgepolte Reaktivität zur katalytischen Bildung 1,4‐difunktionalisierter Produkte. Bei der vorgestellten ersten enzymatischen 1,4‐Addition ermöglicht das ThDP‐abhängige Enzym PigD eine anspruchsvolle asymmetrische intermolekulare Stetter‐Reaktion (siehe Schema).

Iron(II) efficiency: The iron complexes of N(4) ligands, derived from proline and benzimidazole, exhibited an unprecedented activity and enantioselectivity for the epoxidation of a variety of di- and trisubstituted enones (see scheme). This system, based on synthetic non-heme iron catalysts, provides ready access to a wide range of epoxyketones of high enantiomeric purity.