Adición de Michael

CH2(COOC2H5)2 + CH2=CHCOCH3 → product

Descripción general

A Michael donor (stabilized carbanion) adds to the beta-carbon of a Michael acceptor (alpha,beta-unsaturated carbonyl). This 1,4-conjugate addition forms a new carbon-carbon bond and is complementary to 1,2-addition. The Michael reaction is one of the most versatile C-C bond forming reactions.

Ejemplo cotidiano

The Robinson annulation, combining Michael addition with aldol condensation, is used to build steroid ring systems in drug synthesis.

Importancia industrial

Las adiciones de Michael se usan ampliamente en síntesis farmacéutica, química de polímeros (polimerización de acrilatos) y en síntesis de compuestos naturales con estructura compleja.

Preguntas frecuentes

What is the equation for Adición de Michael?
The balanced equation is: CH₂(COOC₂H₅)₂ + CH₂=CHCOCH₃ → product.
What type of reaction is Adición de Michael?
Adición de Michael is a orgánica reaction. It is reversible under certain conditions.
Is Adición de Michael exothermic or endothermic?
Adición de Michael is exothermic (releases energy). The enthalpy change (ΔH) is -25.0 kJ/mol.
What conditions are needed for Adición de Michael?
This reaction requires a catalyst (Base (e.g., NaOEt)).