The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 1,3-Dimesityl-1H-imidazol-3-ium tetrafluoroborate(SMILESS: CC1=C([N+]2=CN(C3=C(C)C=C(C)C=C3C)C=C2)C(C)=CC(C)=C1.F[B-](F)(F)F,cas:286014-53-7) is researched.Related Products of 2407-11-6. The article 《In-situ formation of N-heterocyclic carbenes as organic catalysts for living polymerization》 in relation to this compound, is published in PMSE Preprints. Let’s take a look at the latest research on this compound (cas:286014-53-7).
The ROP of lactide in the presence of the in -situ prepared imidazolium-based carbene, from readily prepared imidazolium salts or a com. available starting material, showed markedly different behavior. Polymerizations of lactide and lactone were carried out in neat 1-Ethyl-3-methylimidazolium tetrafluoroborate (I) and under biphasic conditions with THF. No polymerization of lactide was observed in neat I but polymerization did occur in a biphasic system of ionic liquid and THF. Poly(L-lactide) with relatively high mol. weight and polydispersity 1.4 was obtained with high yield ≥95% using the ionic liquid of imidazolium and thiazolium catalysts.
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Reference:
Bromide – Wikipedia,
bromide – Wiktionary