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Topochemical Ring-Opening Polymerization of an Oxathianethione. [PDF]

open access: yesJ Am Chem Soc
Calderón-Díaz A   +6 more
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Ring Opening of Cyclic Salicylamides

Journal of Pharmaceutical Sciences, 1969
The ring opening of four cyclic salicylamides to their phenolic analogs is described. Compounds in which a basic group is separated from the amide nitrogen by a three-carbon chain were found to undergo this reaction considerably more slowly than compounds with a two-carbon chain. Ring opening was shown to be pH dependent and is base-catalyzed.
B M, Phillips, H J, Havera, T L, Hammes
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Ring-Opening Polycondensation

Macromolecular Rapid Communications, 2000
Since the days of Carothers polycondensations and other step-growth polymerizations were described in the review articles and textbooks on the basis of linear monomers. Having reactive “a” and/or “b” groups, on the other hand, cyclic monomers were usually presented in combination with Ring-Opening Polymerizations (ROPs) which obey the kinetic scheme of
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Ring‐Opening of Epoxides in Water

European Journal of Organic Chemistry, 2011
AbstractEpoxides and water mix well together. The use of water represents an intriguing alternative to organic solvents, not only for developing green processes but also for exploring a totally new and peculiar reactivity. Epoxides react very efficiently in water with several nucleophiles, and several examples in the literature report that the use of ...
BONOLLO, SIMONA   +2 more
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Ring-opening Polymerization of Lactones

2018
The synthesis of aliphatic polyesters by the ring-opening polymerization of cyclic monoesters was discovered by Carothers in the 1930s. Since then, a plethora of catalysts and initiators have been discovered to promote this polymerization. Nowadays, steadily increasing attention is paid to organocatalysts and, among them, acids, bases, and H-bond ...
Lecomte, Philippe, Jérôme, Christine
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Organocatalytic asymmetric ring-opening of aziridines

Organic & Biomolecular Chemistry, 2008
The organocatalytic ring-opening of N-tosyl protected aziridines by beta-ketoesters under chiral PTC-conditions, leading to the formation of optically active aminoethyl functionalised compounds with up to 99% ee, has been developed.
Paixao, Marcio Weber   +3 more
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Nucleophilic ring opening of aziridines

Tetrahedron, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
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Unexpected Bromination Ring‐Opening of Tetraarylporphyrins.

ChemInform, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Chao, Liu   +2 more
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