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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.
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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 ...
Cumene (isopropylbenzene) Index of chemical compounds with the same name This set index article lists chemical compounds articles associated with the same name.
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 ...
n-Propylbenzene is an aromatic hydrocarbon with the formula C 6 H 5 CH 2 CH 2 CH 3.The molecule consists of a propyl group attached to a phenyl ring. It is a colorless liquid. A more common structural isomer of this compound is cumene.
For instance, it is used to make pain killers like ibuprofen. Isobutylbenzene is a colorless flammable liquid that is a respiratory irritant. Industrial production is through catalytic carbometalation : toluene adds to propene in the presence of a sodium-potassium catalyst on activated carbon .
The use of TIVA is advantageous in cases where volatile anesthesia is of high risk or is impossible, such as cases involving morbidly obese patients. [11] [12] TIVA has also been used for anesthetic delivery at sites of trauma such as serious accidents, disasters and wars. [1] The overall goals of TIVA include: [13] Smooth induction of anesthesia