The intermediate carbocation rapidly loses H+ to reform the aromatic system. In the case of Friedel-Crafts acylation, the electrophile is an acylium ion, formed by the reaction of an acid chloride with aluminum chloride. The mechanism is shown in Figure 1. THE ALKYLATION OF AROMATIC COMPOUNDS BY THE FBIEDEL-CRAFTS METHOD—Charles C. Price 1 2. THE WILLGERODT REACTION—Marvin Carmack and M. A. Spielman 83 3. PREPARATION OF KETENES AND KETENE DIMERS—W. E. Hanford and John C. Sauer 4. DIRECT SULFONATION OF AROMATIC HYDROCARBONS AND THEIR HALOGEN, . Friedel-Craft. O O + CH3 – C – Cl ■ AlCl 3 C – CH3 + HCl ■ Benzene Acetophenone jotia.info The electrophile attacks the benzene ring to form a carbonium ion. Formation of the electrophile + (CH3 – C = O) ■ Step 2. Following steps are involved: ■ Step jotia.infoism. ■
El craft reaction pdf
Friedel Crafts Alkylation of Benzene Reaction Mechanism - Tons of Examples!, time: 21:19
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