37830-90-3,In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a article,4,5-Dimethyl-1,3-dioxol-2-one,introducing its new discovery.
(1) 4-Bromomethyl-5-methyl-1,3-dioxolen-2-one [compound of formula (III) in which R is methyl and X is bromine] 3.42 g of 4,5-dimethyl-1,3-dioxolen-2-one [compound of formula (III’) in which R is methyl, prepared in accordance with the procedure described in Tetrahedron Letters, pages 1701-1704, (1972)] was dissolved in 150 ml of carbon tetrachloride. To the solution were added 5.34 g of N-bromosuccinimide and a catalytic amount of alpha,alpha’-azobisisobutyronitrile. The mixture was heated under reflux for 15 minutes. The reaction mixture was cooled with ice, and the insoluble materials were removed by filtration. The filtrate was concentrated under reduced pressure to give a syrupy residue. The residue was distilled under reduced pressure, and a fraction having a boiling point of 115¡ã to 120¡ã C./5 mmHg was recovered. Thus, 4.2 g (yield 73percent) of the captioned compound having the following properties was obtained as a colorless liquid. Elemental analysis for C5 H5 BrO3: IR (neat) nu(cm-1): near 18 25 (carbonyl). NMR (CCl4) delta(ppm): 2.10 (3H, –CH3, s), 4.10 (2H, –CH2 Br, s).
Because enzymes can increase reaction rates by enormous factors and tend to be very specific, typically producing only a single product in quantitative yield,they are the focus of active research.37830-90-3, you can also check out more blogs about37830-90-3
Reference£º
Patent; Kanebo Ltd.; US4448769; (1984); A;,
1,3-Benzodioxole – Wikipedia
Dioxole | C3H4O2 – PubChem