Allyl group

Allyl group

Mechanism of Cyclopolymerization

Published in George B. Butler, Cyclopolymerization and Cyclocopolymerization, 2020

It has been shown that free radical initiation of o-allylstyrene3-2 leads to cyclic polymer possessing six-membered rings. In cationic polymerization, the allyl group isomerizes to β-methylvinyl and the polymer contains a considerable quantity of five-membered ring.

A highly stereoselective oxidation and an easy one pot elimination methodology for 3-allyl-3-phenylthio-β-lactams

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Journal Information

Published in Journal of Sulfur Chemistry, 2022

Suvidha Pandey, Reshma Nagpal, Aarti Thakur, Shamsher S. Bari, Renu Thapar

The most important approach toward the modification of β-lactams involves the generation of molecular scaffolds that act as synthons for further functionalization. In this regard, the sulfinyl group has proved as a very important tool to carry out valuable transformations such as C–C bond formation, Michael reaction, and Diels Alder reaction [21,22]. Similarly, the allyl group act as a key reactant for the formation of epoxides, diols, cyclic propanes, cyclic carbonates, carbonyl compounds, and α-alkylidene-β-lactams [23–26].

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Mechanism of Cyclopolymerization

A highly stereoselective oxidation and an easy one pot elimination methodology for 3-allyl-3-phenylthio-β-lactams