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Dibenzylideneacetone or dibenzalacetone, often abbreviated dba, is an organic compound with the formula C 17 H 14 O. It is a pale-yellow solid insoluble in water, but soluble in ethanol. It is a pale-yellow solid insoluble in water, but soluble in ethanol.
This reaction is named after two of its pioneering investigators Rainer Ludwig Claisen and J. Gustav Schmidt, who independently published on this topic in 1880 and 1881. [ 1 ] [ 2 ] [ 3 ] An example is the synthesis of dibenzylideneacetone ((1 E , 4 E )-1,5-diphenylpenta-1,4-dien-3-one).
The Claisen condensation is a carbon–carbon bond forming reaction that occurs between two esters or one ester and another carbonyl compound in the presence of a strong base. The reaction produces a β-keto ester or a β-diketone. [1] It is named after Rainer Ludwig Claisen, who first published his work on the reaction in 1887.
Most piccata sauces use only lemon juice; we opt for whole pieces of the fruit to make use of every last bit of bright citrus flavor. After a simmer in a wine and broth jacuzzi, the lemon loses ...
The Claisen rearrangement is a powerful carbon–carbon bond-forming chemical reaction discovered by Rainer Ludwig Claisen. [1] The heating of an allyl vinyl ether will initiate a [3,3]-sigmatropic rearrangement to give a γ,δ-unsaturated carbonyl, driven by exergonically favored carbonyl CO bond formation with Δ(Δ f H) ca. −25 kcal/mol (−100 kJ/mol).
In the same Dutch oven you’ll use to bake the rice, add a splash of olive oil and cook onions and your chosen vegetable until al dente. (Ina opts for asparagus, although broccolini, broccoli ...
A dash of baking soda increases the Maillard reaction (a.k.a. the chemical process that creates a golden exterior) in recipes like zucchini bread and sugar cookies.
The reaction is known as the Claisen reaction and was described by Claisen for the first time in 1890. Discovered the thermally induced rearrangement of allyl phenyl ether in 1912. He details its reaction mechanism in his last scientific publication (1925). In his honor, the reaction has been named the Claisen rearrangement.