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Cumene (isopropylbenzene) is an organic compound that contains a benzene ring with an isopropyl substituent.It is a constituent of crude oil and refined fuels. It is a flammable colorless liquid that has a boiling point of 152 °C.
This latter cumene converts into cumene radical and feeds back into subsequent chain formations of cumene hydroperoxides. A pressure of 5 atm is used to ensure that the unstable peroxide is kept in liquid state. Cumene hydroperoxide undergoes a rearrangement reaction in an acidic medium (the Hock rearrangement) to give phenol and acetone. In ...
Diisopropylbenzenes typically arise by alkylation of benzene or isopropylbenzene with propylene: C 6 H 6 + CH 3 CH=CH 2 → C 6 H 5 CH(CH 3) 2 C 6 H 5 CH(CH 3) 2 + CH 3 CH=CH 2 → C 6 H 4 (CH(CH 3) 2) 2. These alkylations are catalyzed by various Lewis acids, such as aluminium trichloride. They can also be prepared and transformed by ...
With the price of eggs rising and shortages being reported at grocery stores around the U.S., hungry consumers may need to look outside the box, or shell, for alternatives. The average price of a ...
Cumene (isopropylbenzene) Index of chemical compounds with the same name This set index article lists chemical compounds articles associated with the same name.
The same principle applies when baking soda is used to boil pretzels before baking. The pantry staple can also serve as a tenderizer for certain ingredients—like meat and even canned chickpeas .
Friedel–Crafts reactions have been used in the synthesis of several triarylmethane and xanthene dyes. [26] Examples are the synthesis of thymolphthalein (a pH indicator) from two equivalents of thymol and phthalic anhydride: A reaction of phthalic anhydride with resorcinol in the presence of zinc chloride gives the fluorophore fluorescein.
Food service providers use eggs in myriad of dishes, sauces and for baking. He believes more will add surcharges to their egg products, like Waffle House, which announced a 50 cent surcharge.