Recommanded Product: 931-40-8. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one, is researched, Molecular C4H6O4, CAS is 931-40-8, about Organocatalytic carbon dioxide fixation to epoxides by perfluorinated 1,3,5-triols catalysts. Author is Sperandio, Celine; Rodriguez, Jean; Quintard, Adrien.
In order to improve epoxides I (R1 = Me, Ph, CH2Cl, etc; R2 = H; R1R2 = -(CH2)4-) conversion to carbonates II by fixation of CO2 a new type of (4R,8R)-1,1,1,2,2,3,3,9,9,10,10,11,11,11-tetradecafluoroundecane-4,6,8-triol were developed. These simple acyclic scaffolds of enhanced acidity are efficient for catalysis through selective H-bonding activation of the epoxide. In combination with TBAI as co-catalyst, this useful transformation is performed under only 1 atm of CO2 and between 30 to 80°C. Both the 1,3,5-triol motif and the perfluorinated side chains are crucial in order to observe this epoxide opening under such mild conditions. In addition, the stereochem. of the starting (2R)-2-phenyloxirane can efficiently be conserved during the (4R)-4-phenyl-1,3-dioxolan-2-one formation.
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